ok i got a 15gal tank with a shortbody flowerhorn/texas hes about 5inchs i had the tank running for awile now the water was perfect 1s i put the fish in it went bad i tried everything water changes i put nutrafin cycle in there i dont feed him alot or anything i just got him a new 36gal tank and im waitin on that 1 to cycle but i gota get this 15gal water safe for my flowerhorn baby what should i do