tnnlynch Posted August 31, 2021 Share Posted August 31, 2021 I recently noticed in my 29 gal planted tank the PH was dropping from 7 to 6.4 and my KH was dropping from 80 to 40 in 7-10 days. The prior month it had been fairly stable with PH of 7.2-7.0 and KH of 80 (climbed to 120 when I was on vacation & no water change). NO2 is 0, NO3 is 25-50, GH is 300. Tap water is 300 GH, 7.2 PH and 80 KH. The fish don't seem to be in stress but I was confused as to why all of a sudden this was happening. I have been keeping a spreadsheet of various aquarium activities by date since I started the tank in May. Looking back it seems my PH and KH have been dropping since I started feeding a home made 'snello' for my snails and shrimp. I generally feed the "snello" once a week after a water change with the exception of last week where I made a mistake and feed twice (PH hit 6.4, KH 40). This jello mixture has quite a bit of Calcium Carbonate in it which I am assuming is lowering the KH. I am thinking I will change the feeding schedule to be two days before the gravel vacume/water change to limit the time the remnants are in the tank. That make sense or am I still missing the culprit? Link to comment Share on other sites More sharing options...
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