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Green plants breath CO2 they absorb the carbon atom and then give off oxygen. if you keep a lot of green plants in your tank, the water can't carry enough CO2 to supply them. in this case you would install a CO2 injection system. the colour of the light used also has an effect on how your plants live too. it may be worth you doing a search. of the forum, using the words CO2 then try lights or plants (try it in both cases). there are quite a few threads that will give you all the info you need.Hey everyone, i have done more research and found there can be problems with CO2 for live plants. I imagine the problem is the something to do with the plants not getting enough CO2. What causes this?
Thanks.