Co2 The Dangers?

Marshall.. · Feb 27, 2008

I am just adding co2 to my aquarium and am just concerned about when the lights are off,
my aquarium is 350 litres and i will be using the nutrafin canister but with a co2 distributor from singapore,I think it's called spio 3 and designed for a 260 litre tank
obviously my concern is with starving my fish of oxygen.

KraKen · Feb 27, 2008

It shouldn't be a problem but if your worried you could get an airpump/airstone and turn it on at night.

aaronnorth · Feb 28, 2008

the diffuser for a 260l doesn't mean it will produce that amount of co2 for that size tank, all it means is that it has a bigger surface area for co2 to dissolve therefore reaching all parts of your tank, the nutrafin is reccomended for a 75l so you will need 4 units connected via T peice and run off a same diffusr or add 3 more DIY ones as it is cheaper. Spending £80 on yeast systems is a lot! Pressurized are around £100 mark!. No way will you overdose, if you want to check co2 levels then get a drop checker for a permanent test or test for kH and refer to this table:

http

/www.aquamaniacs.net/co2.html

If you have low co2 (which you will have at mo) then all your doing is creating algae as your plants can't take enough in for photosynthesis so thy won't use it and algae will use the rest.

Fish can tolerate up to 35ppm but some people run it at 40ppm no problems but keep a very close eye on them if you go for this level, turning an airstone on at night will help but switch it on 1hr before lights to build up co2 levels again.

I would reccomend diffusing it through filter or a bubble ladder (or similar like infinity diffuser) as the pressure from a yeast based sytem is low so a ceramic diffuser won'tbe the better option.

Ask in planted section on this in future, as you will get a lot more and probobly better replies.

Hope this helps

aaron.