C02 escape through overflow + sump system.

[cctan]

Hi, i am new to forum

I need some help. i was advised that a overflow with sump system tankage is not suitable for plant tank, as the overflow and the sump system will release the CO2 that had injected in the water, Is this true.???

can bro & Sis advise.. thank..

[RonWill]

Hi 'cctan',
Water surface agitation, overflow boxes and trickle wet/dry filters are said to 'drive out' CO² but if you're willing to increase to bubble/sec count to compensate for such losses, IMHO, sump filtration works much better than canister (if you have high bioload).

While I cannot be certain, I suspect that there's also CO² losses for those who uses cooling fan/s and surface skimmers.

[cctan]

Thank for sharing.

[blur one]

I am running a 6 by 2.5 by 2.5 ft tank with underflow and overflow into a sump....my bubble count is HIGH !!! I go through a 5 liter bottle every 2 months which is high but I believe the sump filter is better...overseas many large planted tanks use sump filters so it can be done. There was some web article (Which now I can find) that some people tested the CO2 loss with wet/dry filters and with / without surface agitation...it was found that CO2 loss by the sump filter is not that high but surface agitation was the main culprit for high CO2 loss....

[cctan]

Thank,


i will go and hunt for a 5" or 6 " cabinet with sump tank to start a plant tank... thank..