Algae Wont Go Away

[sanderson417]

My tank is about 2 years old, 72g. I have one rock that has a persistent green hair algae issue. I take the rock out and completely brush off the Algae, but in about 2-3 weeks the algae grows back in the same spot. What can I do to permanently remove it? The rock has some nice Bam Bam zoas on it, so I would like to keep the rock. Can I dip the infected piece in hydrogen peroxide or something else to get rid of the algae? Again, it only grows on one rock out of many.

Thanks,

SA

 

[sanderson417]

And, my Starry blenny, crabs, and foxface will not eat it.

Cheers,

SA

 

[miasdaddy]

are you useing tap water

 

[sanderson417]

Not at all.

 

[miasdaddy]

hows your clean up crew,,snails hermits etc

 

[sanderson417]

Cuc is great and none of them will touch it. I know the source of my problem and have corrected it. I need to understand why it keeps growing in the same spot on the one rock after I manually remove it, and what I can do to that spot on the rock to prevent it. It's not really bad now, but I want to get rid of it before it gets bad.

Cheers,

SA

 

[miasdaddy]

well,Ive heard peroxide works,,I've never gone that route,and not sure how it would effect your zoas,but they're pretty tough,and if it were me I'd take a chance on it,before I'd take a chance on the hair algea spreading,Ive heard a ratio of 1 part peroxide to 10 parts tank water,and soak it 10-20 min,,so maybe take that step,,a sea hare will eat it for sure,but they will soon die after its gone,and being that your have just the one spot,thats probably not a good option.Just out of curiosity,what kind of lighting do you use,and how fresh are the bulbs,,old bulbs will change in color spectrum as they age,and can promote nuisanse algea.

 

[sanderson417]

I use T5HO with ATI bulbs. I change my bulbs out every 6 months.

Cheers!

 

[jeffaquarius]

Is it possible that the location of rock with hair algae is exposed to outside light like sunlight or your house lighting? Starving it with light is one solution.