Planted Tank Obsessed
Join Date: Feb 2005
Location: Chambersburg, PA
How high can C02 go before being fatal to fish?
How high can C02 go before it begins to be a problem for fish? I just measured my C02 for the first time tonight since I went pressurized and apparently I have 120ppm of C02 in my little 10 gallon. Obviously that's a lot more than it should be. The only fish acting a little funny is my gourami (pumping it's gills a lot, hanging out at the surface), the neons, ottos, corys and such all seem to be fine. I measured my ph at 6.0 and my kH as 4. Does a 120ppm of C02 sound right for those water parameters?
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