Is it safe for te fish to raise the temperature while the in the tank? i dont have a hospital tank. My inhabitants are 2 skunk clowns, 3 damsels, to pecular(nemoe), 1 yellow tang, 1 snowflake eel, 1 firefly, 1 cleaner shrip, 1 anemone, 1 puffer, 1 star fish, and a pink fish that i cant remember...