For a tiny fish, Friedrich sure does poop a lot.
I was suspicious for a while because he's been eating a lot, but I never saw any poop. I wondered where it all went. He didn't look bloated or anything, so I put it out of my mind.
Today I thought he was behaving oddly, so I decided to clean the water early this week. It looked less than welcoming anyways. So I did a 60% change.
Well, apparently he only poops in this ONE spot behind his rock. So really that giant clump had been fouling the water this whole time, which is why the water has gotten so dirty so fast. I kept changing it but never got to that lump behind there, since I couldn't see it.
Do they always do that? O_o Choose one spot to poop? I thought bettas were indiscriminate poopers.