Planted Tank Enthusiast
Join Date: Jul 2012
Location: Northern Colorado
High pH due to filter
Ok, so I bought a 10g kit for a betta. I received it a couple of days ago, and am planning on fishless cycling it. Straight out of the tap, I get a pH reading of 7.4. A day after I set up the 10g (I just let it run over night) I checked the pH and it was extremely high, at roughly 8.2. So to figure out what was making my pH fluctuate so much, I removed everything from the tank and put it all in separate cups, all with water straight from the tap. (heater, filter, filter cartridge, the black spongey filter cartridge thing, and finally left the tank sitting with only water in it) I waited a day, and checked the pH again. All of the cups of material came out to a pH of 7.6 except the bare filter that I left running in a bucket, which came out to a pH of 8.2.
So is there any reason why my filter is raising my pH so much? It is a tetra whisper 10i
And any way to stop it so it stays stable?
I would prefer to not use any chemicals or buffers....but if they are my only option I guess I don't have another choice.