Algae in frag tank.

[BJcorals]

I’ve had my frag tank plumbed into my dT now for two years and since about April I’ve been dealing with algae problems in the frag tank. The display is fine but I can’t seem to get rid of it in the frag tank. I’ve tried hermits, snails and no luck. I even have a two spot bristle tooth tang in there lol. Nothing is helping. So anyways my po4 is 0.02 and no4 is 2.0. Anyone have suggestions. I can’t be buying new eggcrate every month and changing it out. It’s beginning to be a pain.

Here’s a pic of what I’m talking about.

 

[Big G]

I added a small "The Green Killing Machine" to my coral QT. Worked pretty good along with switching out the eggcrate periodically after cleaning.