my guess would be that maybe the peat is breaking down and adding to the bio load? i think if the peat was gone and a good water change and low feeding for a couple days your parameters would level out.my point with the p.h. was trying to change the water you have coming out of the tap is only going to make things worse.the only safe way to change your current water source is mix with r.o. water.Ive been there and tried that.just not good for the fish.if you can get some test kits and test for g.h- k.h- you will surprised that most fish will be just fine with the water you have coming out of your tap.soulFish;676963; said:I agree a stable Ph is more desirable, than making spikes in it. But my real problem was the Ammonia spike, it jumped from .5 to 2.5 in 3 days! Last night I noticed my Leopards hiding and scratching, and also the shark was scratching, so I did some water testing and the Ammonia level was toxic, hence the weird behavior in the fish. So I am just trying to get help with finding the culprate in the Amonia spike. The Ph and the Peat was just the starting point.