I think I finally beat this terrible, horrible, unrelenting nuisance algae (I think). I’ve made no chemistry changes but kept trying to find a predator to control, here is what I tried:
-Foxface
-Dolobolla Sea Hare
-Various tangs
-Tuxedo Urchin (~25)
-black long spine urchin (2)
-Emerald crabs (~6)
-Turbo snails (couple dozen)
-Pitho crabs (~12-18)
The first seven did absolutely nothing, once in awhile I’ll see the long spine eat some but it prefers coralline algae. The Pitho crabs, on the other hand, are the key, they have mowed it down to nothing in about 3 months. I now how to look for stalks that are randomly here and there, they are then gone a week later and other small ones appear and again they mow them down. I feel very confident they are keeping it in check. I can’t express how happy it makes me to look at my tank and not be angered by these green stalks of hell. Not to mention not having to spend 3-4 hours picking them from the tank every 3 weeks and feeling like it’s a loosing battle. Also let’s not forget the alk challenge, constantly tweaking the calcium reactor. Alk would shoot up a week after harvesting then once growth became established 2 weeks later alk would drop and I’d have to double calcium reactor output.