I've had this Betta since the end of October and while he's always had a tendency to hang out in the upper corners the last few days he's been doing so pretty much exclusively. He also does not seem to be eating. I got some blood worms yesterday to coax him out of his mood, much to the delight of his tank mates, but he didn't go for them.
Parameters all test well, ammonia 0 ppm
, nitrite 0 ppm
, nitrates slightly up, color looks like 0 to 5.0 ppm
, not as dark as .5 on the card, but darker than 0. I did my usual weekly 10% water change.
It's a planted tank with a canister filter. Everyone else is doing very well, seven Zebra Danios and three Clown Loaches.