Algae I.d. And help please

[Jsheffield85]

So I have a algae problem. Think it's GHA but not sure, I am currently at work so I can't test my water but this has been slowly building in my tank. I use nutri seawater for my water changes and too off with rodi (it's only a 6 gallon tank) only livestock I have are coral banded shrimp, 2 scarlet hermits, zoas, blasto, Duncan, Xenia and few mushrooms. The shrimp gets fed 2-3 times a week. Only filter media I run is phosguard and a sponge for any big stuff, any ideas why I'm having this issue? My light schedule is 1230-7pm it's a custom led light on a dim4.

 

Better pic

[shawnriv]

It looks like hair algae. I would first guess it would be over-feeding, but if you're only feeding twice a week I guess it wouldn't be that. Are you feeding the tank with anything else? It could also be the live rock you're using and it may have pests or algae. I always start tanks with dry rock to make sure there isn't any hitchhikers or cause any algae problems.

[Jsheffield85]

Not feeding anything else. Could be the live rock but I know a few people who use this rock, and the lfs it came from is a pretty good store. You hand pick your rock out of a tub in the store and it doesn't have any algea growth in the tub. I'm gonna cut down the light sched for a bit and see what happens. Only hitchhikers I see are a few asterinas.