He is doing a little better. I went to the store I bought him from (a
proper aquarium shop, only sells water animals) with some of his tank
water, and they said the pH was 7.8 which is way to high. SO i now
have some stuff to fix the pH. I also bought him some clean feeder
fish. I figured I needed to spoil him a bit since his water was so
bad. He enjoyed chasing them for a while and he finally just caught
one!!!

So I assume he's doing better, he still hates me though, he only swims
when he thinks I'm not there watching him... although he did chase and
eat the first feeder in front of me!

I'll have to test out the sunblock backdrop, although now that it's
autumn the sun is rising at a different angle and not getting to his
tank anymore. I'll still test it out though.

Thanks for everyone's help!

(Shannon) wrote in message . com...
Hi,

Recently my red tiger oscar has started just sitting around like he is
sulking. I can usually con him to come out with food when he is
sulking, but lately he just ignores everything. His poo's are
floating, so I was wondering if it's possible that we've been
overfeeding him lately? He started sulking right after I did a huge
water changed (80% of the water) because the tank had some bad algae
going on (that floating strandy type algae), and really to take out
half the water wouldn't have made a difference. I also put in some
anti-algae stuff and I'm pretty sure I didn't overdose the tank.

Other than sitting around not eating, he is his usual charcoal colour,
and hasn't gone grey around the gills or anything else. When I pay
attention to him he sort moves a little in his spot, and moves his
mouth a bit, but that's it!! The only other thing I can think of is
that he had a small red christmas bauble as a toy tied to his rock,
which I threw away, could he just be sulking because I took his toy
away? He never seemed to play with it often anyway...

What's wrong with my oscar?!