Algae on rocks

[Chago09]

OK I have many forms of algae growing on my rocks. I have that lime green one that doesn't even seem like it comes off the curface it almost looks as if the rock was died a lime green. Mixed in that lime green there is some nice purple coraline. Neither of those algaes bother me, I actually like them.

Although I am also having some algae grow which I don't like. My substrate is growing a nasty looking hair algae. I think its hair, because it looks like long tangled strings of brown algae. Plus t hangs from some rocks aswell.

I also have anoter form of algae on the rocks, which is greenish colour and looks sort of slimey. It stands up off the rock and like I said looks kinda slimey. Now I am not sure if my yellow tang is eating this stuff. I have noticed my algae has not been as bad as it was a few months back. My nitrate has dropped to undetectable.

Is there any good links that has pics and info on what eats certain algaes etc??

[inachu]

Not enough water is being moved about.

Buy a decent powerhead like a Karilia.

[Chago09]

I have a mag 18 return pump, koralia 4 and 3. What I did was I face the koralia 4 towards the front glass and teh koralia 3 towards the back glass. This way all the blunt force of the water hits the glass then gets pread nicely over the rock. Is this the wrong wy of doing it??? I didn't want to aim the koralias right at the rock because I was afraid it would be too much flow for the corals. Am I mistaken???

My hammer really doesn't move very much at all, although looks very happy since it is wide open everyday.

[BeesGoneWild]

You could try blue legg hermit crabs, astrea snails and diadema sea urchins. But other than a clean up crew you should figure out what is cuases the algae. A clean up crew will only be able to do soo much. Click my red house for algae tips.

[memorisa]

i think the hair algae is greener and mostly on the rocks and glass, but i could be wrong. i'd assume u'd get better responses if you could post a pic

for facing the rock w/ the powerhead, i'd say as long as it is not hitting the corals directly it may be an option

and for the hammer, you dont want lot of flow for it, they like moderate at most IMO.

[Michael]

yep some cuc will help, the cause is probably excessive nitrates, try sticking some algea in your sump, if you can, that will help, also as for the earlier comment about you not having enough flow, i think with what you mentioned you have, your flow is ok, regular water changes and cheato or other algaes in the sump will help the hair algae as well as cuc