mlm
Active Member
I am just starting out on a reef tank and I had a question. First let me tell you that I have a 55 gallon tank, prizim skimmer, fluval 404 (biofiltration only), 60 pounds live sand, 60 pounds of live rock and a 4 lamp vho. I was wodering if all the additives and suplements that they sell such as calcium, iodine,.....etc are really necessary for coral growth and helth or is it just companies trying to make money?