Get the fish out please
. They may seem happy, but they will die. The crabs are aight, just peachy. Damsels are OKAY, but that Puffer will just PUFF out, ya know? They are hardy, but damage will be long term. One damsel, the one u like the least. Throw in like a piece of cocktail shrimp, or maybe even just a frozen piece of fish. It'll decay, start yer bacteria and waht not. The live rock and live sand will help you out a bunch too. Still, check yer salt levels, cuz they might be high, and run yer magnum fairly fast to create a good amount of flow. This will help to maintain less algae growth, make the fish feel at home (strong current) and whatnot. So please get the fish out, please?
. I beg u.