Algae

[MATRIXINC]

I have a stable tank:
Environment and Equipment

110 Gal tank
2 inch CC bottom
Lots of rock some live
Sump plus wet to dry with Bio Balls
Fluval 440 filled, charcoal, bio-media
Dual Bak Pak protein skimmer with bio media
Two power heads not sure of the size
Lots of air bubbles
I 4-5 inch yellow tang, 2 blue dams, 2 zebra dams, one shrimp, one domino, one Emperor Angel, big star fish.
Lights are new and 65 watt x 4 power compacts 50/50
RO water only
Water changes 10% every 2 weeks

Algae is becoming a big problem. Afer cleaning in 1-2 days tank is flloded with Algae again. Mostly Brown with lots of red. Help.

 

[Witfull]

its prolly the CC substrate, locked in debris and leaching phosphates, also i would ditch the fluval bio media, and use it just for carbon. your wet/dry should be more than enough bio area.

is this a fish only, or a FOWLR?

 

[MATRIXINC]

I appreciate yuor diagnosis but what do I do with this situation? My tank is fish only.
Thanks
Jim

 

[mwrager]

How long has the tank been set up and running?

 

[MATRIXINC]

tank has been running about 6 months....all water parameters are Ok except high Nitrate. I use RO water but...Nitrate has been high from the git go

 

[Curtswearing]

Go to your LFS and get a siphon hose like this http://www.drsfostersmith.com/produ...9&Ne=40000&R=12239&js_enabled=0&N=2004+113165 and thoroughly clean your CC. While cleaning your substrate, you will need to replace the water lost through the siphoning. You can do a waterchange then.