I have a 10 gal, low light tank that is having a pH crash (7.4 to 6.0 in a week), which is causing my crypts to melt, and is thusly giving me a small ammonia spike.
My gH stays nice and stable at 6 degrees, and has been since the tank was setup. Three weeks ago during my weekly water test, I noticed my kH was at zero; so I went out and purchased Seachem's Neutral Regulator to hopefully raise the kH and keep ph stable, but it seems to not be working. I added a level teaspoon to my 5gal hydrotote of RO water. I then did two 25% changes during the week a few days apart. KH seemed unchanged, now pH is crashing faster than the Hindenberg. Fish seem fine(as a matter of fact, my neons are loving it), snails seem fine, crypts are very unhappy.
Did I not add enough? Wrong product? Or just misuse? Ideas?