Quote:
Originally Posted by rogergolf66
Thx for info but I already tried
1. running airline for skimmer outside
2. Double chamber co2 scrubber
3. Saturated limewater
All with very little results
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Hmm, you must have really high CO2 in your house then. Each of those fixes should have moved your PH a little higher. Especially the limewater.
What I found worked for me and moved my PH up by about 0.2 units, was a whole house HRV. As you are in Florida, an ERV would be more appropriate. If your tank is in wall and inside an enclosed space (like in a fishroom), you could try a smaller ERV intended for single rooms. Normalizing he CO2 level will almost certainly correct your suppressed PH.
Dennis