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  1. Mark Nicholls

    Propogate Hygrophila Polysperma

    It only produces aerial roots if there arent enough nutrients in the substrate and it needs to get food from the water column. To propagate, simply take a stem cutting with at least 5 leaves on it. Remove the bottom leaves and push the cutting into the substrate. The OLD stem can be either...
  2. Mark Nicholls

    How should the flow of the co2 bubbles be?

    My diffuser is on the right. The filter outlet at back/left, forcing the gas down and across the front of the tank. Dropchecker is on the left.
  3. Mark Nicholls

    Aponogeton crispus 'Red'

    Mine is starting to throw out red leaves now.
  4. Mark Nicholls

    Do carpet plants over-run crypts?

    Crypts grow extensive root systems that will go much deeper than those of small carpeting plants. The Crypts will be fine but you MAY find poor growth of the carpet in the immediate area of the Crypt unless you add extra substrate ferts.
  5. Mark Nicholls

    Alternative to "carpet" plants

    Pygmy Chain Swords do extremely well if they are in a nutrient rich substrate with med/high lighting.
  6. Mark Nicholls

    Thoughts on these?

    In theory, ANY terracotta pot SHOULD work
  7. Mark Nicholls

    Attempts to optimise CO2 distribution

    Try putting your dropchecker in different areas of the tank to see if the colour changes. If its the same colour in each location, you have good dispersal; if not, then you have poor flow.
  8. Mark Nicholls

    Adding Co2

    I agree with Wookii, I've just added a pair of Golden Rams to my 50ltr setup and am dialling in the CO2 VERY slowly! I'm at 11.5ppm at the moment which is JUST at the lower end of effective concentration but would rather have slower growth of plants than dead Rams!
  9. Mark Nicholls

    Newbie confused by KH/pH reading vs. drop checker vs. .....?

    I totally agree with ceg4048. After spending ages looking up charts, reading articles, calculating % etc. I realised that I was spending more time researching co2 than I was looking at my tank. I suspect that in a 310ltr aquarium, your issue is flow related. Is the filter effective at...
  10. Mark Nicholls

    New java fern help?

    Ive given the appearance of it being buried by attaching it to pebbles
  11. Mark Nicholls

    C. Crispulata var Balansae (tropica in vitro) - not growing?

    I give up. This is absolute nonsense
  12. Mark Nicholls

    C. Crispulata var Balansae (tropica in vitro) - not growing?

    So Crypts don't melt for any other reason than not having a co2 system
  13. Mark Nicholls

    C. Crispulata var Balansae (tropica in vitro) - not growing?

    What the hell has root uptake got to do with a movie franchise? I'm referring to THE MATRIX. My comments are based upon my 40 years of horticulture and not on conspiracy theory!
  14. Mark Nicholls

    crypts and co2

    I've uprooted Crypts to divide them and found extensive root balls wrapped entirely around clay root tabs despite being in nutrient rich water. This is further evidenced by Crypts growing fine aerial roots when grown in a low fert substrate. If they absorbed the lions share via leaves, aerial...
  15. Mark Nicholls

    crypts and co2

    In nature, many Crypts spend an equal time emerged and submerged. This annual change, caused by the rainy season, is the main reason why crypts melt because they have to grow new leaves which are adapted for optimal nutrient uptake. The ONLY constant is the roots which DO grow massive, both to...
  16. Mark Nicholls

    Help Understanding Air Stones

    There is only a minimal amount of oxygen created by bubbles. Extra oxygenation takes place in two ways: 1) The column of bubbles draws water from the bottom of the tank to the surface where it will absorb oxygen from the atmosphere. 2) The upward flow creates ripples which increases the...
  17. Mark Nicholls

    Wonder why my Balansae is so brown?

    Good lighting and good substrate ferts with lots of iron put red into most crypts
  18. Mark Nicholls

    C. Crispulata var Balansae (tropica in vitro) - not growing?

    All Crypts are mainly root feeders therefore co2 won't have much impact on them. They grow in stages. Roots/leaves/roots/leaves. Before sending out lots of new leaves, your newish crypts will be establishing a good root structure first. I suggest you focus less on co2 and start feeding them on a...
  19. Mark Nicholls

    Black patches on Java Ferns

    I'm assuming that you DO have the plants attached to wood or rock as opposed to buried in the substrate. IF your plants are attached to wood or rocks, that's OK. If you only get the occasional leaf turning brown, its not a problem. If you are getting lots of leaves turning brown all at once, its...
  20. Mark Nicholls

    Limnophila advice

    My personal experience is that it loves high light, a decent flowrate and plenty of liquid ferts. Individual stems should be planted 1" apart so light and waterflow can penetrate. PH and temperature aren't crucial. Under good conditions, expect at least 1" a day growth. When mine grows too...
  21. Mark Nicholls

    Brand new CO2ART Pro SE Problems

    OK. Here's what you need to do. The working pressure can ONLY be decreased this way: 1) Turn off the gas at the extinguisher 2) Turn the knob on the regulator right down to minimum. 3) Open the bubble counter to release all residual pressure. 4) Turn the solenoid OFF 5) Close the needle...
  22. Mark Nicholls

    TDS always increasing

    I use TDS to give me a rough idea of erm total dissolved chemicals. I use the aquarium note app to keep track of changes in chemistry over the hours days and weeks. I have a baseline tap water reading and also have a baseline reading of my aquarium taken after a 50% water change. Finally, I have...
  23. Mark Nicholls

    Creating CO2 profile - baseline PH

    I totally agree with CEG4048. I live in an area that has EXTREMELY hard water (14.5) and things COULD get horrendously complicated if I aimed for perfection. At the end of the day, my plants are thriving and my fish are spawning in an aquarium that looks fairly attractive and that's ALL that...
  24. Mark Nicholls

    My Cryptocoryne dominated 100 lt riverscape .

    My Cryptocoryne cascade
  25. Mark Nicholls

    Co2 and PH

    Agreed. I DO keep a log using aquarium note.
  26. Mark Nicholls

    Co2 and PH

    The reasons why co2 goes off an hour before the lights are: 1) To save wasteage. 8hrs of CO2 per day costs 1/3 of 24/7 usage. 2) To avoid stress to fish. Plants only use co2 whilst they are photosynthesising (when the lights are on). If we turn off co2 an hour before, the idea is that the...
  27. Mark Nicholls

    Co2 and PH

    I went down this road when I first started with CO2. It can get horrendously complicated to the point where one is spending more time researching than fishkeeping! Nowadays, I content myself with healthy fish and plants and a nice lime green dropchecker. I DO move the checker around...
  28. Mark Nicholls

    Limno. Sess and Hydrocotyle Tripartita issues

    Limno is notorious for attracting and trapping debris and algae due to its fine leaf structure. Apart from constantly planting new shoots, it's something that has to be lived with. This is one of the reasons why Limno isn't seen too often in display scapes.
  29. Mark Nicholls

    wilted Limnophilia Sess- plant or wait?

    Bearing in mind that 99% of aquatic plants also grow above water, you shouldn't have any issues. I personally find Limno to be extremely Hardy.
  30. Mark Nicholls

    Spray Bar and CO2 Diffuser placement confusion

    Here's a vid of my pkacement
  31. Mark Nicholls

    CO2 running 24/7

    There WILL be a pH swing in a heavily planted tank whether or not CO2 is infused. Here's why: CO2 is acidic O2 is alkaline. Plants photsynthesise producing oxygen during the day but they BREATHE producing CO2 24hrs a day. This means that during a 24hr period there are slight net swings in pH...
  32. Mark Nicholls

    Spawning

    Cherry Barbs Spawning. PH 7 28°c
  33. Mark Nicholls

    Echinodorus melt

    Do you have a photo?
  34. Mark Nicholls

    Algae problems

    To remove string algae effectively, I use a toothbrush
  35. Mark Nicholls

    Trumpet snails help aerate sand?

    MTS will help to turn over the sand, they will help to keep roots healthy too.
  36. Mark Nicholls

    New co2art diffuser has a brown ceramic instead of white

    The brown one is even finer meaning better efficiency!
  37. Mark Nicholls

    Can i use that uv-c light to stop green water ?

    A UV works by causing green water algae particles to clump together whence the particles become big enough to be trapped by the filter. For this reason, it's best to use a dedicated product that is fitted inline on the inlet pipe of the filter. If exposed to continuous uvc there is a risk of...
  38. Mark Nicholls

    Seachem Flourish Excel

    You are forgetting that algae not only consumes liquid nutrients but for plants, the most important nutrient is LIGHT! IF a leaf has algae growing on it, yes a tiny amount of nutrient is used, BUT the algae 9n the leaves prevents the plants from photosynthesising as effectively! 50% or more of...
  39. Mark Nicholls

    Seachem Flourish Excel

    You have misunderstood several of my statements. Re: plants competing with algae. I am saying that glut kills the algae. Once the algae is dead, there are more nutrients available for the higher plants so they grow. Re: Company secrets: If its only known by a few people who are bound to...
  40. Mark Nicholls

    Seachem Flourish Excel

    Flourish Excel won't change the colour of a Dropchecker. It's more of an algaecide than a source of bioavailable carbon. The amount of Carbon released is TINY and WONT show up on a Dropchecker. It's made from glutaraldehyde which is extremely toxic if used at greater concentrations than...
  41. Mark Nicholls

    Co2 equipment

    Only problem with paintball is that sodastream canisters are much more readily available, being sold even in places like asda and argus whereas paintball is far more specialised.
  42. Mark Nicholls

    Soda Stream Canister- How long would it last on a nano tank (there abouts?) nano tank 35 ltrs.

    I'm running my 50l aquarium at 1bps using a Pro SE and paintball adaptor. Started using it mid December and the gas has hardly gone down. I am expecting for it to last for at least 6 months at this rate. I use sodastream because the adaptor has a tap, making removal and setup really easy; also...
  43. Mark Nicholls

    Substrate

    I'm having great success with a substrate based mainly on playsand. The back is playsand mixed with gravel and the foreground is pure playsand. All areas are fertilised using a clay based formula. There is also co2 and EI liquid.
  44. Mark Nicholls

    Modern External filter design

    My opinion is that most newer models are gimmicks and are recipes for disaster! Every connector is a potential leak and every compartment or attachment reduces flow. Most "features" are gimmicks, designed to sell new products. I find that the more basic a filter is, the more reliable it is. My...
  45. Mark Nicholls

    Co2 OCD!

    Metal is far more practical.
  46. Mark Nicholls

    Co2 equipment

    I have used several methods of infusing CO2 and have found the #co2art pro se to me easily the most, efficient, effective and economical. Here's a link to an article which documents my experiences to date... My CO2 article
  47. Mark Nicholls

    15 ppm co2 goal

    I totally agree with Mr Shenanagins. My 50l is currently running at 27.5 ppm and I'm perfectly happy with that. However, there are a few slightly darker areas in the corners of my tank and the slower growth is NOTICEABLE
  48. Mark Nicholls

    Small Canister filters for small tanks.

    My EF150 is almost a Metre below the top of my 50l aquarium and I've experienced very little loss of flow. The trick is keeping pipework as straight as possible and having no sharp bends, this maximises flowrate.
  49. Mark Nicholls

    What's your favorite canister filter and why?

    It HAS to be the Allpondsolutions EF150. It's simple, effective, easy to maintain and is adaptable.
  50. Mark Nicholls

    algae on plants and substrate will liquid c02 help

    Using "liquid co2" is just a temporary fix. You need to identify and address the root cause.
  51. Mark Nicholls

    Can a second filter be causing more nitrates?

    Assuming that your existing filter is working to full capacity and is the correct size for your tank, adding an extra filter will NOT increase the bacteria! The bacterial population is limited by the amount of available Ammonia and Nitrite. So... Unless you add more Ammonia, it's impossible to...
  52. Mark Nicholls

    Water changes bad for beneficial bacteria

    I would suggest that any Ammonia added as part of an EI regime is EXTRA to that produced by tank inhabitants. The bacterial colony in a filter has a constant supply of food as the amount of waste produced by fish stays the same. Any Ammonia added as part of an EI regime WOULD be consumed by BB...
  53. Mark Nicholls

    Best way to keep Crypts low?

    Best way to keep Crypts low is to have bright light. Under low light, they reach upwards towards the light but under bright light the leaves open out and lay much flatter.
  54. Mark Nicholls

    Crypts: Foreground and midground

    I have around 50 plants, all split from one C. Wendtii mother plant. They are in 3 different aquaria and look COMPLETELY different! I personally have found that Wendtii and Wendtii "Red" both seem to grow best (and quickest) in a soil-based substrate ferted with an iron-rich fert (I use a...
  55. Mark Nicholls

    Trimming Crypts

    I don't completely remove the leaves but I DO regularly prune the outer leaves. By regularly, I mean Monthly. I do this to get rid of any traces of algae which grows on older leaves and also to encourage new growth.
  56. Mark Nicholls

    My Little 50l Setup

  57. Mark Nicholls

    Opinions for root tabs

    Hi Paul. I've used Pinia and they are very very good but make sure that you plant them deep to prevent clay getting into the water column if you have fish that dig.
  58. Mark Nicholls

    Play Sand

    We have two tanks that employ playsand. It IS slightly higher maintenance than pool sand, requiring agitation to prevent compaction but on the plus side, our Corys love it, the plants do too and finally, its really inexpensive. You deed to wash it for ages before using it though. IF you are on...
  59. Mark Nicholls

    Filter recommendations

    I personally recommend the Allpondsolutions 500IF due to its ease of maintenance, simplicity and effectiveness. As you can see, it keeps my 50L tank crystal clear and the cherry barbs spawn regularly too! Here's a link to the review I did on my website...
  60. Mark Nicholls

    Opinions for root tabs

    I have made my own root tabs which have proven extremely effective and economical and you only need two easily sourced ingredients! I used: Fullers Earth in my original experiment however, I am in the process of ordering some red pottery clay powder for my next batch. It's really important that...
  61. Mark Nicholls

    Imitating Nature.

    Agreed. All we can do is a pale imitation of and tribute to Mother Nature. I've been down many roads in my history of Fishkeeping and by searching out diy solutions and operating a low(ish) tech system, I'm learning more now than I ever did whilst I was running a shop!
  62. Mark Nicholls

    Imitating Nature.

    I think that with the theme in the big tank, it wasn't so much trying to exactly recreate a slice of the Amazon as trying to recreate the ambiance of the area and adapt it so that it also looks visually appealing in a lounge. For example, I wanted Blackwater and used oak leaves. Obviously, oaks...
  63. Mark Nicholls

    Imitating Nature.

    Hi there Matt. Here is the logic behind my use of 12 hour lighting. All of our tanks are tropical. By definition, in the tropics, there are equal hours of day and night all year round. Therefore, we have a TOTAL of 12 hours light. This equates to 10 hours of full spectrum lighting with an hour...
  64. Mark Nicholls

    Imitating Nature.

    Here's my take on running a successful low maintenance low tech low budget tank. I have adopted these rules over many years of aquatic experience and have learnt by my mistakes Pick a theme. My particular themed tank simulates a medium flow river bed. Do your research. Learn the water...
  65. Mark Nicholls

    Greetings one and all.

    Hi everyone, just a quick message to introduce myself and our tanks. The top tank is my personal tank which is stocked with Crypts, Swords, Java fern and aponogetons. Its got a sand/gravel/pebble substrate and is fertilised using homemade ei salts and clayball substrate ferts. The filter is a...
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