<a href=showthread.php?s=&postid=8960574#post8960574 target=_blank>Originally posted</a> by Schplitter
I set up a 75 gallon reef tank about 3 months ago. I have roughly 100LB of live rock and a 14 gal sump. Coralife super skimmer 125. Mag 12 pump for main filtration and 3 100gph powerheads. I made the tank and sump myself out of acrilick. I'll add pictures soon. It is a corner tank and the sump is L shaped. The tank is 30 inches tall and the live rock is about 5 inches away from the water line. I have some coral: 3 leathers, 1 abae anemone, torch coral, muchroms, open neon brain, sun coral, Orange plating montipora and a couple more odd balls... The sump is loaded with spaghety algae. ...
I think I got everything. Now to the problem. I think my tank may be overstocked. I have the following fish in the tank.
2 chromis
1 blue demsel
1 3 stripe demsel
1 foxface Lo
1 Yelow Tang
1 fire fish
1 watchman goby
1 maroon clown
snails and crabs all over.
I have almost no hair algae since the yelow tang and the foxface are eating nothing but that. However I do have cyanobacteria all over the sand bed. I have been fighting it for the past week but I can't seem to win the fight. I feed the coral about once per week and the fish get some of that food also. I stopped feeding flake roughly one month ago.
All my levels seem fine except for nitrates seem to never fall below 20 ppm. As soon as they hit 30 ppm i do a water change and they go down a bit...
What do you guys think? How do I kill the cyano? What do I do about the Nitrates?
Thank you for all your help,
BK
