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no, there is very little difference, the reg still has to be screwed on and off in the same manor. not sure if you will get the "proper" bottle filled up at many fire extinguisher places, altho the place i use to recharge my FE's also fills up the local fish shops CO2 bottles, who then triple...

i'm sure some ppl will use them as "normal" with no problems. I guess it depends partly on the lighting, the higher it is, the more critical co2 levels become. If you do use it on a timer. Have it come on a couple of hours before the lights and off a couple of hours before lights off. Also dont...

yeah, set the controller to the desired ph, not the ph the tank is at. a drop of 1 ph from the tank ph is a rough guide line. i personally would just use the controller as a safety cut off rather than to actually "control" the CO2 mine is on a timer so it comes on 2.5 hours before the lights...

i guess that'd be fine. velcro costs a few pence tho.......

i secure my FE's using to long bits of velcro screwed to the wall, they wrap round the FE at the top and bottom.

apart from the denerlle, these are a different thread.

hey, i learnt to live with the noise! :0) altho... removing the middle tray of media did help a little, (i run two filters so not a worry) also make sure the pipes coming from the top of the filter are not kinked over at all further restricting flow. i did also think about fitting a defuser in...

i'd say you have a leak! That or yer getting ripped off on the refilling. I have a 240 running pretty high lightin so need to inject at a pretty high rate too. Or i guess you could have massive surface movement? :-/ A 2kg fe lasts 2 months for me.

no.

lime green is the colour you really want to be aiming for, maybe even getting yellowish just before the co2 switches off. obviously as long as the fish seem fine with it.

the tank in question is not mine and it has no co2 supplementation but BBA has broken out, so was just wandering if liquid carbon is used specifically to eradicate the BBA how best to do it.

thanks guys.

i understand spot dosing excel/easy carbo is the standard way to rid a tank of BBA. what confuses me slightly tho' is, if the tank in question was a low tech non co2 tank, then surly adding liquid carbon to get rid of the algae, then discontinuing its use, could cause BBA...

yes to solenoids. 99% certain the reg willl fit a FE as far as i know the threads are universal, hopefully someone with the same reg can confirm 100%

that is a fantastic price for a nearly 4kg of co2 tho. buy 3 of those every 6 months and yer sorted!

dan sells em viewtopic.php?f=23&t=2204 where to get refills http://www.ukaps.org/forum/viewtopic.php?f=4&t=4612 of course if you wanna go bigger, pub bottles are another option.

well, plenty of ppl do use them and i have not read of any nasty accidents............ yet ;0) the way i see it they are really no different to using a shop bought co2 bottle for the tank (apart form MUCH MUCH cheaper) you still have to screw the reg on regardless of what bottle you use!

did you mean 20 days??

the soapy water method is just putting soapy water on the joints/connections to visibly see if any leaks are present. i'm pretty sure all the refillable bottle have the same thread so a fire extinguisher is the most economical way to go.

that seems about right. 500g in my 240l lasts 2 wks. thats why i use fire extinguishers now.

Re: Pearling After co2 is off? its fine, it just takes that long for the water to get saturated with oxygen.

sounds good dude. look into tweezers and scissors too, if you haven't already. they are a must have also.

toms post on the first page pretty much covers that.

never really thought flow would have an effect in that way, (kinda obvious really tho i guess!) thats probably why my old tank did that then as the flow was terrible! i like the new avitar btw! :0)

i guess it depends a lots on the type of plants, the light duration and the depth of the tank. in my old tank which was about 1w/gallon (12" deep) the cabomba used to pearl a little bit, that was on a 12 hour light cycle. the algae in there also used to pearl like no ones business. :lol:

surely pearling is a pretty good visual indication that a plant is healthy and happy?? not to mention a good indication that co2 levels are fine? that is not to say that if a plant isn't then there is something wrong, (i guess lower light will limit this somewhat) but if it is then pretty much...

The reactor goes on the output of an external filter or pump. The water flows down thro the reactor, the bubbles enter at the bottom and are suspended in the reactor against the flow, (sometimes with the aid of bio balls or filter wool) and defused into the water as it flows back into the tank.

yes reactors will completely dissolve the co2, i have an aquamedic reactor, they are pretty expensive to be honest. (about £50 you can easily DIY one similar, there is info around here somewhere to do this.) i probably would have bought the one from the link i posted had i seen them before i...

do you get pearling at all? my tank looks like lemonade at about 3 hours into the light cycle! 8) altho i guess this will happen more under higher lighting.

http://cgi.ebay.com/CO2-Carbon-Dioxide- ... 981wt_1165 this is pretty similar but cheaper, few ppl on here use 'em and say good things about them

even better if you have no fish, crank it up!! ;-) I have fish and my drop checker is pretty much yellow all day. No signs of distress!

viewtopic.php?f=37&t=6885 in this thread......

viewtopic.php?f=37&t=6885 in this thread......

there is a formula somewhere on this forum to calculate co2 useage, but different bubble counters will produce different size bubbles and until you know the actual bpm you will require then it will be hard to get an exact figure. co2 usage will depend on plant mass/types, also surface agitation...

i would think you'd get between 2 and 3 months. but that is a total guess! :0) maybe longer.......

on a 240 litre tank a 500g bottle lasts me 2 weeks!!!! that is under 1t8 and 2t5's. if you are running high light i'd stay away from dissposable bottles and look into getting a fire extinguser set up as you can get these filled for as little as £10. it costs me 12X as much money to run...

ah, was wandering what the reasoning was! :0) i'm not sure if it was for dissposable bottles. (thier number 01452 862791) the 500g refillable bottles i've seen are pretty much no different in size/looks from the dispossable bottles tho. (apart from looking slightly sturdier and having a "guard"...

http://www.charterhouse-aquatics.co.uk/ ... -1896.html not welding reg but seems good price. lfs (aquatic habitat, shurdington road.) is selling for 39.99 with a bottle! (and a 2 gauge version with solinoid for around £80) you may wanna find out what thread it is and what other systems/bottles...

scrap that, i see there is one included with your diffuser.

non return valve! stops the water flow back down the tube.

it surprising isnt it?! i use a ph meter (not to control the co2 but just as a low level safety cut off, if that makes sense) it also means i can see the ph anytime (i know things other than co2 influence it, but it gives me a good "idea" of the co2 levels at any given time) after a major trim...

wouldn't even consider disposable! last about 2 weeks in my 240l and for about £30 each not good value!!! 2kg FE lasts me roughly 2 months.

may be worth checking one of these out, i think a couple of ppl on here use them! if you dont like it you haven't lost that much...

the reactor m has to go in the tank dosent it?!! :shock: i have an aquamedic 1000 with an ehiem 2028 which is a similar output 2 both of yours i believe, it does slow the flow some what tho. :0/

erm, are you not incorrect in thinking this? nitrAtes don't increase nitrites. and wouldnt adding nitrates only decrease PO4 levels if the plants were nitrate limited? in which case you should be adding nitrate anyhoo how would you go about retaining co2 at night? i guess pretty much the...

i dont think you should definitely ditch the ph controller. once you've realized the limitations of it and dont use it to control the co2 but rather as an extra level of safety back up it can be useful. as far as i can see it is the only way to negate possible co2 dumps at the end of a...

I believe most ppl would leave it in all the time as i do. There is very little difference between them, apart from the way they look, they all work the same. The solution lasts for about 2 wks so you should never get caught out.

i gave up looking and bought a different reg in the end, (cost about £40) considering a FE costs a the same as a disposable bottle for four times as much CO2 it money well spent!

ok, thats something i'll look into, i'm running the aqua medic reactor 1000 with an ehiem pro2 2028, maybe i'll try removing some media and see if that improves it at all!

the only problem is the noise, its pretty much silent until the gas build up then it makes a trickle sound which just annoys me! :0/

yup, its all correctly connected! :0D

hi, i have an aqua medic external reactor. i seem to get a pocket of gas build up in it everyday, this then makes an annoying trickling sound until i vent the excess gas, anyone else have this problem if so is there anything i can do to rectify this? thanks

the FE's are fine, i was initially worried also, but if you buy an "all in one kit" you'll still need to change the regulator on new bottles, so its really no different apart fom a quarter of the price for the CO2!!!!! the koralia 2's are 2000l/per hour, but the new filter is half that (ehiem...

hi, i'm no expert, but think the lighting is a little on the low side maybe?. co2 pretty much needed for riccia and HC cuba i believe. low co2 and low nitrates i think are main factor causing BBA. i relatively new to all this and purchased a dennerle comfort co2 system when i was setting up...

thanks for advice guys, i've read through that thread. the wave seems to get good reports, the more expensive ones arnt really mentioned in there tho, so i was just wandering if the "branded" ones are worth the extra pennies or its just a case of paying for the "badge" (which it seems is more...

which one???? wave http://www.firststopaquatics.co.uk/acat ... ges__.html or aqua medic https://www.theaquaticroom.com/catalog/ ... 112117e83d i'm looking to buy a regulator for a fire extinguisher, is the aqua medic one worth the extra £'s anybody used both?

the 2 sold on ae are the same threads, just producede by different manufacturers. But i have since read on another forum that the dennerlle thread is different to any other disposable bottle. The guy tried one of the adaptors from ae without success. So it seems i'm prob gonna have to get a new...

thanks guys i've just e-mailed AE, they have two converters but both are for different systems, it may be one will also fit a dennerle bottle tho. if not i'm still looking :0/

hi, i have a dennerle comfort-line professional co2 kit. the cannisters are disposable and i believe this regulator wouldnt fit a FE, so does anyone know if "adaptors" are available? or is it time for a new regulator? if so whats the reg of choice? thanks.

no, not really! ;0) the ph controller reacts pretty quickly, unlike a drop checker! so it'd be fine as lone as the .1 drop needed to turn it off was still within "safe" limits. i have been wandering how much the ph in the tank was influenced by organic acids etc, so, as a little test last...

i do have one! which is why i read the post in the first place. i thought initialy it was the thing to have, nice high techy bit of kit and besides i got it dirt cheap! ;0) but the more i thought about it, the more i realized that they had big limitations, mine possibly more than yours i...

i'm quite startled after readin the whole of this thread! A question was asked, the op didnt like the answer got upset an then didnt take on board anything that was said! The op didnt prove at all that too much co2 was present previous to to ph controller, but more than likely "proved" that...