I posted this in the general section but maybe I should have put it here. Not really an emergency yet.
I'm new to fish and somewhat anal and want to do everything "right". So my 5 gallon tank is busy doing it's fishless cycle - going verrrrrryyyyy sloooooowwwwwlly BTW - and in the meantime, I found a little blue Half Moon (or so the sticker said) with pretty silver fins at Petco that seemed healthy and lively. He followed me as I looked over his little cup - although given its size I'm not sure there was much else he could do - and seemed very active and personable. So I got a 2.5 gallon keeper and another heater and brought him home. I think I acclimated him correctly and the first night he was very active and checked out every inch of his tank. This was Monday. He spent the next 4 days mostly hiding either in his plant or under the little rock bridge I built for him. He would come out to patrol the tank for a couple of laps, get some air, then go back to one of those two places. When he does swim, he seems fine - swims straight, goes up and down in what appears a normal fish fashion, no darting or jerking, not frantic, not brushing up against stuff - just swimming around like a little fish. He hasn't eaten a thing that I can tell but I guess that's not all that unusual. Yesterday he finally seemed a little more social, was patroling his tank a bit more and flared when I held up a mirror
2.5 gallon, will be 5 gallon when it's cycled
Gravel bottom, One silk plant, smooth rock bridge
Heated, 80 degrees
No filter or airstones
I've offered Omega One Betta Buffet pellets, 2 pellets twice a day. So far he has declined. I got some freeze dried shrimp and crumbled one up and sprinkled in. Unimpressed.
Petco is pretty much my only option. I looked at their frozen food but it seemed to have no nutritional value whatsoever.
Setup tank on Monday with Aquasafe plus and small dose of AQ salt because I figured he was a little stressed from life in the cup. Wednesday, did about 50% change, mostly because I was worried about him. Today, Saturday, did a 100% change and added 1 tsp / gallon AQ salt + Aquasafe.
Tested the water before I changed it this morning, Saturday.
Ammonia - .25
Nitrites - 0
Nitrates - 0
Symptoms and Treatment
I think he's gotten a little darker on his head with kind of a red hue to it. Almost like it's bruised. This may just be his color and I didn't notice during all that time he was hiding from me. Scales don't seem raised. I've checked for velvet with the flashlight (I'm imagining every possible disease at this point) and he seems somewhat iridescent but, he's a fish, aren't they kinda like that?
Yesterday I was looking him over and noticed some red streaks on his anal fin and this morning another streak on his tail. He also has a couple tiny pin holes, one in his dorsal fin and another on a pectoral.
Here is Beto:
This is how he spends a lot of his time:
This shows the darker color on his head:
And these are the red streaks - does this look like fin rot or is he just snagging himself on something in his tank? The color is weird in this photo - his body is not really that red.
If fin rot, is treating with the AQ salt and daily water changes the best plan of attack at this point?
How long before I should start panicking about his not eating?
Update this afternoon: Since I changed his water, he's laying in the same spot in the corner of the tank, no longer hiding. He moves around if I stick my finger over there. Still hasn't touched any food.