caligulasAquarium
Aquarium Advice Activist
Ok it doesnt sound like anything in your tank is causing these swings... Normally your pH should drop a little once the tank has been up and running but you seem to have massive swings... have you by chance added any chemicals or pH stabilizers?
I've added chemicals the owner of the LFS reccomended to help fix my ammonia problem in December, but the pH fluctuating was this month, not in December when I first added them. They're Nitromax, Seachem Prime, and Ammolock.