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You will need two timers, one for lights and one for gas

Start with gas on 1 hour before lights and gas off 1 hour before lights off. Get a drop checker as this will give you an indication of the Co2 ppm. your are aiming for a green/lime green colour when lights on and it to stay this colour until lights off. Trying to achieving this colour will...

Higher agitation seems to have fixed surface scum and the co2 now gets to correct level by lights on. Now just to keep the plants healthy

I had some surface scum with lower surface agitation, bps at 1.3 and at this rate it took about 4 hours to go from 7.4 to 6.8 before lights on. So this weekend I upped the co2 to 2bps and increased surface agitation, pH at 7.6 before lights on and 6.9 when lights on. Decreased gap between co2...

Thanks for the reply, the Staurogyne is losing its bottom leaves, and some leaves now appear translucent. I'll update my journal shortly with a few photos. :)

Thanks for the link, I think I may have read that a few years back, I joined here in 2008 and had varying success with a 240l, 70l and 125l. After a few years off I'm just trying to get my head back around the process and anything that may have changed (LED lights for example) since I was last...

The other day I left our tap water for 24 hours and then tested the ph, the reading from the tap was 7.4 and after 24 hours it was 8.2, however the KH is still 7 so I'm still aiming for 6.8 - Is that right? Yesterday I upped the co2 to 2 bps and increased surface agitation, the ph drop was...

Thanks, it's on at 13:30 with lights on at 16:00. Should the pH level be at 6.9 for 4pm?

So is this profile good or bad? If it's bad any suggestions on how to improve it? Thanks

So I may experiment with a higher bps rate to see how quickly the pH drops as without a pH controller I'll need to manually monitor during the light period. Sent from my SM-G935F using Tapatalk

Yes thanks, during the week I'm leaving it unchanged, tested yesterday evening and PH down to 6.85, which according to the link I found on here to RotalaButterlfy is spot on 30ppm. Now I guess i need to get it to 6.85 for lights on and keep it there for the lighting period. I may experiment at...

Anyone?? Sent from my SM-G935F using Tapatalk

Forgot to mention gas on at 13:30 and lights on at 16:00 (the 14:00 on the chart should be 13:30)

Hi, I'm trying to get the co2 in my tank stable during lighting period, I've borrowed a ph pen and have charted morning, co2 on, lights on, co2 off lights off on a chart. Looking at the chart my co2 builds over the lighting period before returning to normal ph for my water over night. My...

Yeah I'd say so, between 1mm and 0.5mm coming out of the spray bar.

Hi, I've seen various PH test pens on Amazon ranging in price from £12 to £120, can anyone recommend/tested any of these pens. Ideally looking get one of the cheaper ones to help me get my PH to 6.8. Ta :-)

Here it is in situ [emoji4] Sent from my SM-G935F using Tapatalk

Okay thanks for letting me know, ended up with the jbl one as my local Maidenhead aquatics had one in stock. Sent from my SM-G935F using Tapatalk

So had it running since Saturday, lots of bubbles coming out of the spray bar, but the diffuser makes a hissing sound, does yours do this? I've checked the co2 connecters with soapy water, no leaks.

After adding the reagent to the 4kdh water it turns green rather than blue.

okay thanks i'll check later

its been opened, so I guess I may as well get a new bottle?

We have some 4kdh solution we bought from Aqua Essentials in 2011, is this still okay or should I buy some more?

Where would you put the diffuser in my current setup?

Not too worried about the bubble counter as I already have one.

Do these diffusers need to be vertical as I only have about 10cm above the filter before the pipes go behind the aquarium? If I install it on the outlet it will probably be at about 45degrees as that pipe goes from the right side of the cabinet to the left side of the aquarium.

Thanks for your help, my local Maidenhead Aquatics sell the JBL inline diffuser so will try that one first as I can easily take it back if it fails for whatever reason.

So you have this connector between your bottle and diffuser and so disconnect the c02 tube then unscrew the bubble counter?

Do you find you use less gas now (I assume you had a tank one first) ?

Thanks now which one do I buy ?? :nailbiting:

Okay I think its time to get one, we have to clean the tank one as it does get clogged up with algae over time as you rightly said because its exposed to aquarium lighting.

Do you find it more efficient than an in-tank diffuser?

So you bought an UP diffuser ? Do you have a link ?

Thanks for your experience with it, is your diffuser near the filter ? Would you have an in-tank diffuser again now you have had this?

I've been thinking of replacing my ceramic in tank diffuser for a while now and stumbled across the JBL Inline diffuser (it looks very similar to the UP diffuser). I did a quick search on here and found a thread back in October last year, but there was not a lot of detail in there, just "don't...

Tried using tank water in the drop checker (I know I should not) and it started out blue. Just checked it and it's now green.

Just tested the reagent in tap water and it seems to be working as it went blue straight away. We put it in the 4 kdH water in the drop checker again and put that in the tank it went yellow straight away. Could the 4dkH water change over the course of 3 years stored in a plastic bottle, or...

Yeah I guess the reagent is past it's best as it used to work fine.

Hi, After a few years of less my my full attention I want to start to give my tank some much needed TLC. I dug my old JBL drop checker out of the cupboard and a bottle of 4dkH water I still have. I added the prescribed amount of 4dkH water and put in 2 drops of JBL reagent into the drop...

Cool, So C02 is not essential then by the looks of it. mmmm, maybe a JBL proflora c02 set appearing on the "for sale" forum soon then...

Okay, I was just wondering if I could sell it as I have now have these low light plants.

HI all, Just a quick question, if I have a tank with Anubias and Java fern using T8 tubes, do I need to run a c02 system with it? Cheers

You can find a c02 splitter on The Green Machine website for £4.99 in case you are interested. http://www.thegreenmachineaquatics.com/mall/productpage.cfm/Aquatics/_hxcfr01/198933/CO2%20Y%20Splitter Cheers

Okay, sounds like the best option to me, I have broken a rhinox diffuser in the past so hearing that this one is bit more robust is great. Have you tried covering yours with black cloth so the keep the light out and so keep the algae at bay! Thanks

Thanks for the info How did you find attaching the hoses to the ends? Does it seem fragile as its made of glass or fairly robust?

Thanks for the pointer Paul, although that thread is mainly for the AM1000, I found it very useful. I'd like to read about other diffusors/reactors out there and peoples experiences with them. I've just a quick search of the forum and can't seem to find anything on the CalAqua 17mm diffusor...

Paul, Great thanks for the information, I think I'd put two clips on as well as I would not like to wake up in the morning and find the tank has emptied onto the floor overnight because of the pipe slipping off. Cheers

Paul, I'm also looking into getting an AM1000 and replacing my glass diffusor, have you found it generates better c02 distribution in the tank and thus allowed you to save on c02, as the whole co2 setup is more efficient? One of my questions was on the hose tails as they seems to state...

Thanks for the info, I've seen the AM1000 for £49.99, this seems quite a good price and if reactors are better maybe I get one of these, however if someone who has one/used one could share their experience then that would be great? Cheers

Thanks for the reply, I am confused as to why the AM 1000 web site mentions 12/16, surely it does not matter what the external dimension of the hose are :? . In the AM1000 product manual you can download is says the one hose tail is 16/18 and one 12/16, this seems odd to me so I was wondering...

Hi all, I'm thinking of getting an external c02 diffuser for my 240 l tank. I've been looking at the AquaMedic 1000 and the cal aqua one - Although I'm not sure I need a glass one as it won't be seen inside the cabinet. Does anyone have experience of using either of these and whether they...

Good old silicone :D Its JBL Co2 tubing, I was thinking of putting a cable tie over the tubing to try and keep it on but I may just end up breaking the diffuser. The JBL tubing after a year in the tank got very hard and inflexible, so I replaced it with some spare JBL tubing I had which was...

Yep, quiet a way past. I heat up the end of the pipe so it goes on further. The Rhinox 1000 in my small tank does not do this and the old Rhinox 5000 I had before I broke it was also okay.

Hi, My co2 tubing keeps coming off my Rhinox 2000 Diffuser and I’m not sure how I can keep it from doing this. I heat the end of tube in warm water before putting it back onto the diffuser to make it more flexible but this seems to have not helped as it still comes off. Does anyone have any...

Hi, Sounds like you have the grasp of high and low tech tank setup. As far as I know a low tech tank light output should be between 1.5wpg and 2.0 wpg, with your Roma 200 you have 1.15wpg so may struggle with some plants. Saying that I have a Roma 240 and for the first 8 months managed to...

I have had a JBL Easy set 2 for about a year now have not had a problem with at all. It's easy to setup and even easier to adjust the flow of c02 to the tank. My Easy set did fall over once but nothing happened, so I drilled two holes in teh cabinet either side of the bottle, screwed in two...

I guess you can gauge the amount co2 in the water with the drop checker anyway.

I attached the Spiro upside down in the tank and after a week no joy, algae on the ceramic disk and no water in it. So I cleaned it in a bleach solution and it now seems there is bleach in it which I can't seem to get out. I''ve given up with this now and have bought a Rhinox 5000 instead...

Thanks for the information Ade, I'll try attaching it upside down in the tank. :) Steve

Hi, I'm using a pressurised system. I can't fill it with water as there is air in it and it will not escape through the ceramic disc - Is this normal or is diffuser faulty?

Do you need water in it as I see on AE in the description it says the bubble is in contact with the water whilst going around the spiral? If so how do you get water in it ??

HI, I just bought a spiro diffuser and wondered if anyone can tell me how to get it to work, as I can't seem to find any information on this. I attached the C02 tube to the spiro but the gas just formed a large bubble in the verticle tube and did not travel down around the turn and up into the...