What is this?

[Rich42082]

Sorry for the bad picture. This looks like strings of algae. Not sure if good or bad.

 

[Kio707]

Could be green hair algae... GHA

 

[Rich42082]

Thanks, is this good or bad?

 

[Kio707]

Not good. Is your tank new? How often do you feed? how long do you leave your lights on?

 

[joy13]

It looks like you might have one little piece of bubble algae here is a decent link to algae ReefCleaners.org | Clean Up Crews and Macro Algae - Nuisance Algae ID Guide

 

[Rich42082]

I feed once every other day and I leave lights on for 10 to 11 hours a day.

 

[Rich42082]

Heres another picture. The algae seemed to close up a little bit.

 

[Kio707]

I feed once every other day and I leave lights on for 10 to 11 hours a day.

Keep the lights to 7-8 hrs. Also check ur nitrates and phosphates.

 

[Rich42082]

Ok I'll try that, but I normally keep both lights on for about 6 hours and then I turn the bright light off and keep the dark light on for another 5 hours.

 

[Kio707]

Also try emerald crabs.

 

[Rich42082]

I was going to try that but I have a wrasse that eats the crabs.

 

[Rich42082]

Would GHA close when lights are off? This algae seems to open up when lights are on and close when lights are off.