seakitty Posted June 8, 2021 Share Posted June 8, 2021 300+ GH, 0 KH, and 6.4 PH Nitrates 25 Nitrite 0 Ammonia 0 Chlorine 0 Temp 74-76 20 gal tank Water varies only slightly and I check everyday. Do I need to do something to my water or is this an acceptable combination for Emerald Corydoras? I have just started a few plants but am adding more. My tank has been cycled now for several months. TIA for your help. Link to comment Share on other sites More sharing options...
tonyjuliano Posted June 8, 2021 Share Posted June 8, 2021 That 0kh measurement is going to be a headache, IMO. I would harden that water a bit, you have room - pH wise. Link to comment Share on other sites More sharing options...
seakitty Posted June 8, 2021 Author Share Posted June 8, 2021 My gh is very hard already at over 300. What would I need to do to raise it more and how much is considered too hard? Link to comment Share on other sites More sharing options...
tonyjuliano Posted June 8, 2021 Share Posted June 8, 2021 11 minutes ago, seakitty said: My gh is very hard already at over 300. What would I need to do to raise it more and how much is considered too hard? To raise the KH without raising the GH, add sodium bicarbonate (baking soda). 3 grams added for every 10 gallons of water raises the KH by about 4 degrees. 1 Link to comment Share on other sites More sharing options...
seakitty Posted June 8, 2021 Author Share Posted June 8, 2021 @tonyjulianothank you. Link to comment Share on other sites More sharing options...
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