I began my tank with a 29 gallon salt water. Before I invested too much time and money, I wanted to see if I could manage salt water aquarium so I started out small. I have maintained perfect water perimeters, religiously change 15%-20% water changes every Tuesday with RO Primo water from Walmart. The salesman at the pet store helped me with all the equipment, set up, clean-up crew, live rock, sand and my 4 little guys (1 tiny clown, and one inch basslet, a blennie and a wrasse) Everything is going great, all my little guys are healthy and happy. The problem is the foul, horrid, ugly ALGAE monster has never left my tank. It started with big brown patches on my sand bed. Since we thought it to be diatoms, I moved it out of any sunlight and I left it alone. Then it grew hair, and I’m talking massive fur…then my snails grew green hair, my rock grew green hair, my emerald crabs too. My tank looks like I am growing balls of penicillin with Oscar the Grouch climbing around. Fortunately my fish are not suffering at all. But it has killed my feather duster, anemone, and two soft corals, 3 snails, and 2 emerald crabs, a shrimp and its working on my last two leather corals. The lady at the pet store suggested that I change out my sand bed with crushed coral. I did that and that was just fresh meat for the little buggars. Darn algae came back and brought more with it. This algae has been red, it’s been green with a full blown green algae bloom, and now it’s some type of long stringy, gunky brown crap. I even bought a UV sterilizer, some “chemiclean” tank treatment, and “Kent Marine Superbuffer dKH Buffer and KH Builder” along with a battery powered “sucker outer” gravel cleaner all suggestions from forums and such. Although I hated to do it, I even left the light off for 48 hours and didn’t feed the little guys for 3 days, with no luck. I clean it out, it comes back…next day..no joke. I’m looking to upgrade to a 65 gallon some day but GEEZ I can’t imagine fighting with twice as much algae as I have now.