Vervo Posted July 7, 2010 Report Share Posted July 7, 2010 Heyas, So my CO2 i turn on during the day lowers my tank pH to 6.6 , and then i turn off overnight and the pH goes back 7. This 0.4 jump every day im assuming is going to be very stressfull for the fish? Would it be better if i left the CO2 on 24/7 on a real low setting like 1 bubble per sec? Or is the .4 change ok? The fish dont seem to be stressed by it. But i was told any changes in pH over .2 at a time will become stressfull. Any help appreciated. Cheers! Quote Link to comment Share on other sites More sharing options...
Joe Posted July 7, 2010 Report Share Posted July 7, 2010 0.4 won't bother them. Fish prefer a lower pH - 5-6.5 I've found works really well (unless your've got fish that prefer a higher pH like Malawi Cichlids). Quote Link to comment Share on other sites More sharing options...
ryanjury Posted July 7, 2010 Report Share Posted July 7, 2010 0.4 of a PH change is a big deal especially fluctuating every day it would be causing stress to your fish. I am not up on the play with these CO2 systems and stuff like that but I would definitely be trying to do something to fix it.. Maybe increasing the KH in your tank would help? Quote Link to comment Share on other sites More sharing options...
Vervo Posted July 7, 2010 Author Report Share Posted July 7, 2010 0.4 of a PH change is a big deal especially fluctuating every day it would be causing stress to your fish. I am not up on the play with these CO2 systems and stuff like that but I would definitely be trying to do something to fix it.. Maybe increasing the KH in your tank would help? Yea that could be an idea, our current kH is 50ppm so a bit more would probably be good. Quote Link to comment Share on other sites More sharing options...
Vervo Posted July 7, 2010 Author Report Share Posted July 7, 2010 Using things like crushed oyster shell to raise the kH of the tank will also raise the pH right? Which is not really going to help... Any sugestions ? Quote Link to comment Share on other sites More sharing options...
breakaway Posted July 7, 2010 Report Share Posted July 7, 2010 Seriously.. don't worry about it. I've had high CO2 in 200L tank with dwarf puffers and it didn't bother them at all. They even bred, twice. Also, the dwarf puffer is more sensitive to water conditions than the average guppy. Quote Link to comment Share on other sites More sharing options...
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