Green Hair Algae

[Diesel]

My lawnmower blenny only likes eating whatever I am trying to feed my chalices, acans and favias.

Don't feed your corals for a while, it won't hurt them.
I never feed my corals and they are stunning!
Oh and never had HA in the last 30+ in this salty hobby.

 

[RJinPV]

My #1 suggestion is a sea hare. The only down side is that you need to protect them from the blender of doom ie. power heads. They can ink, although I have only experienced this when they have been killed. This is from my personal experience. Once the algae is controllable your normal blue legs, astrea, trochus, ceriths and other grazers will normally keep it in check. Most of the time that I see a tank over taken with hair algae it is either a problem with nutrient export or a lack of grazing hermits and/or snails.

I have been battling the GHA problem for a year. Besides getting nutrients under control I discovered there is no magic CUC. I have tried scarlet hermits, blue hermits, trochus, cerith, astrea, and turbo snails. One LFS said to load up on emerald crabs. They killed each other off until only one is left. He is a proven snail killer so he is in the sump now. Nothing worked. I tried four sea hares. They are the only creature that will actually eat this stuff. However, none of mine lived over 3 to 4 days. I got tired of killing the poor things. By every measure my tank chemistry was OK. I still have no idea they would not survive long.

 

[ReefBum]

Thank you! Here are a couple of pics

To me it looks like diatoms, but I am not totally sure based on the pics you provided. If that is the case you might have excess silicates that could be coming in via your top off water. Here is an article I wrote on the topic about eliminating and preventing this type of algae.

https://reefbum.com/pests/eliminate-prevent-diatoms-reef-tank/

 

[Turbo's Aquatics Verified Sponsor]

New tanks are susceptible to outbreaks of algae and cyanobacteria for a myriad of reasons, sometimes you just have to let it pass and do what you can to keep it at bay without driving yourself completely nuts and going overboard changing things constantly trying to find that "perfect setup"...Read #15 in this article, it may help give you perspective (and make you feel a bit better about the battle you are fighting...you're not alone, and there's an explanation)

http://www.reefkeeping.com/issues/2004-01/eb/

 

[Mark9]

Put in some turbo snails, give it a couple weeks, problem solved.