The problem with DIY
is keeping it consistant. I'm learning just how much work that is with two bottles on a 29 G. So much, in fact, that I am really leaning towards removing it until I can afford pressurized CO2
Things to keep in mind:
Always use at least two bottles and never change all of them at the same time.
Check the pH often! The pH will rise as less CO2
is generated by the yeast. Your plants might just slow down until there is more CO2
, but these fluctuations will be really hard (if not fatal) for your fish.
NEVER do anything to slow or prevent the release of pressure from the CO2
generating bottles. They can and will explode, cause a big smelly mess and possible damage to things and/or people. You can NOT just put in an air valve to slow down the CO2
If you think you are getting too much CO2
(test results, gasping fish), your only option is to remove some CO2
(surface agitation, etc.) rather than slow it down - unless you remove the CO2