Problem with my new betta "Phantom" who I got about a week ago. I bought him at the same time as another betta from Petco who seems to be normal.
Phantom is almost transparent and you can see his blood vessels very clearly.
Unlike my other bettas who act normal Phantom rarely moves, he usually stays near the top of the tank, no signs of SBD, but he is very tiny (about 1/3 of the size of my bettas) In fact, except for his prominent and perfect DT finnage his body looks like a guppy.
He never swims around the tank.
Is he just a very young fish or is there something wrong here?
I change the water 100% every 2-3 days and siphon out waste from his barebottom 1.5 gallon critter keeper that has a plant in it. (I had a terra cotta pot but took it out, because i thought it might be causing his weird behavior).
He also eats well (I am feeding pellets 3 2xday) but just slowly moves towards the food (not like a rabid shark)
His water is conditioned tap water just like the other bettas and he has a heater that ranges from 76-78.
Before I got him someone told me he might have some sort of disease since you could see the veins, but there are no red patches, or anything visually wrong with the fish.
I am starting to get a little creeped out by this, and am worried he might have some kind of transferable disease.
Also, I am using our kitchen sink to clean tanks (and then bleaching the sink) and also sharing his turkey baster with the other new fish (just rinsing it with hot water)
Can I have some advice on better cleaning methods?