[blawrence]

Has anybody had problems with the ph jump associated with putting fresh low ppm water into a co2 injected tank? (I know the plants are good but I worry about the fish

 

[happi]

Has anybody had problems with the ph jump associated with putting fresh low ppm water into a co2 injected tank? (I know the plants are good but I worry about the fish

i never had any problem unless you are talking about major drop in PH, from 6.0 to 7.0

 

[Hoppy]

Virtually everyone who uses the EI dosing method also uses CO2 and changes a large percentage of the tank water every week or so. If that caused problems with the fish I'm very sure you would find dozens or hundreds of threads here discussing how to cure that problem. I haven't seen a single one.