Hey guys. I have only been in the salt water hobby a few months. I did almost everything wrong on my first set up but now it's running well and all fish/inverts/corals look happy and doing well. (Didn't kill any of them) I think I got a great deal on a Red Sea max 250 65 gal. It has the upgraded led lights full spectrum. And everything seems to be in working order. Still has live sand/crushed coral in it and some water. Few inches. Lots of alge growth all over. I bought it for $250 and it's actually in perfect condition physically. Now do I threw away the sand? Best method of cleaning it? I personally like the color of the Alge. What would you guys recommend I do first as it is a used tank ? The guy who owned it bought a larger Red Sea model and transferred his rock and livestock to that. It wasn't a poorly maintained tank. Whatever info you have will certainly help.