I got a juvenile dwarf puffer. I put him into my well established planted tank. Readings and temp are pristine! Its 30 gallons of planted heaven. I threw an assortment of sizes of pond snails in the tank as I was unsure how big of a snail he would eat. I tried blood worms. I tried 4 kinda of fish food ranging from cichlid to guppy food. It’s been 5 days and I don’t think he has touched anything. Still glass surfing and active, brightly coloured, seems generally ok but I’m concerned. I was told they would murder all the snails just for sport and they are everywhere. I even put a guppy fry in to see if instinct to chase was there. He seemed to sniff him like a dog greets a human. Then went back to swimming around. Is my puffer going to die ????!?!