So I got may make delta tail Oz home and plopped him in my ten gallon heated tank. The water consists of flourish, stress coat, and quick start. The tank contains decor, gravel, about 15 plants (amazon and argentine swords and an assorted Anubis), a heater, and a sponge filter turned on low. I put him i are letting him acclimate to the water tempurature. I waited a day to feed him. On Monday I tried feeding him with no luck (I tried pellets and flakes of different brands with no luck, he didn't even look at it. I already am treating one sick betta, I dot have the time or tanks to treat another so if he doesn't eat by this weekend I'm giving him back to the pet store. I can't handle another fish death I've buried to many this year. Today is Wednesday, what should I do? Physically he is fine showing NO sickness signs at all. He is shy and hides behind the heater when I come into the room, I thought he was cold so the tempurature is around 82 now. He still hides. He swims normal too what should I do? How many days can they go without eating?