Algae question/help

[iSherm]

Here's the history:
This is a 60 gallon tank which has been running for 3 months. I do 5 gallon water changes once every 2-weeks. Has 4 individual corals (x3 acans, x1 duncan); x2 clown fish; x1 cleaner shrimp; x2 emerald crabs; and a CUC which consists of dwarf and florida ceriths, nassarius, nerites, and hermit crabs.

I feed corals x3-4 times a week and fish daily.

Right now the chemistry is:
Salinity 35ppm
pH 8.4
Nitrite 0ppm
Nitrate 0ppm
Ammonia 0.25ppm
Phosphate 0ppm
Calcium 460ppm
Hardness 125.3ppm

Filtered through a sump, water goes through sock filter, refugium which holds macroalgae and live rock with 12 watts of LEDs, and a bag of Chemi-pure Elite.

I have this algae on my rocks. Am I feeding to much, not enough water changes, CUC not enough???

http://farm9.staticflickr.com/8032/8068422830_736c07341d_b.jpg

[TauReef]

Get some turbo snails in there. You are getting 0.00ppm phos because the algae is eating it up. Try adding turbos and cutting the lighting for a day or two and see if that helps. Increased water changes and adding a phos reactor will go a long way as well.

What kind of lighting do you have? You may need to change to bulbs.

[iSherm]

What kind of lighting do you have? You may need to change to bulbs.

I'm running AI Illumination Sol x2. 100% on blues and 50% on whites.