Ok, here are the facts:
1. I got my fish (male Crowntail) on Sunday afternoon, around 2pm.
2. He, and all the other Bettas, had been kept in small cups of blue colored water.
3. He is now in a 2.5 (2 and a half) gallon tank. I did get the water treatment to remove chlorine from the water.
4. Yesterday I got a heater for his tank and a thermometer. Before heating the water was about 74 degrees, it is now a steady 78.
5. The fish seems healthy, swimming and fairly active. I can not see any white spots, fin rot, or other physical signs of sickness.
6. I have been removing uneaten food after about 15-20 minutes so as to not foul the water. Though, it was a touch cloudy this morning. I'll do a partial water change after work and probably remove the 2 seashells I have in the tank, just in case.
7. I checked the pH and it is a solid 7
8. I have tried the following foods: flakes (purchased by mistake though they are specifically for Bettas) , pellets that float (believe the name is "Betta Bites" they are tiny red pellets that do not sink, and freeze-dried blood worms. -- The fish has swam right up to the food, but has not eaten, I've not seen him eat a single bite since I got him.
I don't know what to do, I'm worried about my fish not eating. It is Tuesday morning and I got him Sunday afternoon. I would have thought he would be eating by now...
I plan to call the pet store and ask what kind of food they had been feeding the Bettas, just in case it was something different that what I have been trying. I might also get some medication in case there is fungus, but I don't see anything other than light cloudyness to the water.
I need tips. Is there some other food to try? Something specific I need to check for?
I've had Bettas before, but I don't remember having one not eat. :/
Any help at all would be great!