Originally Posted by teddyzaper
is your ph to high? is your water to alkaline? here is the solution for under $20
Marksfish - Peat Filtering
this seriously works, my only question is, is it toxic to the fish?
Is not toxic but as article stated, you will need to mix the water created this way with some tapwater to restore buffering capacity. Otherwise ,the ph will continue to fall and with ph value below 6.0 nitrification is near non existent. I would think one would want to maintain a stable ph and some expierimenting in seperate container would be needed before adding to tanks holding fish. Otherwise,it is a good way to soften the water for species that require it.