hair algae

[Dave Zale]

i got about 2-3 inch hair algae in various spots, most i can correct, but the problem is on the rocks which i have coral growing on...my readings are good, the tank is 6 plus years established, i use ro water, only two fish in the tank. I have used reeflux and phosphate rx, to no avail,tho reading for ph stood at 12, never used peroxide, not that i know much there, have gone dark, which i believe to be a joke, plus coral does need light. Other option, is how long can i have coral out of tank, to maybe try something weird there. Was actually going to use a small tank of whatever and burn it off. Of all my tanks never once have i had a green problem, guess its my turn.....nothing added to the tank in years. You can see i,m a little confused as to what next. I look forward to the help

 

[14 foot reef]

More details are needed for this fabulous forum to help you.
Tank size, filtration, perimeters, maintenance regiment, specimens in the tank, CUC.
Thats just a start.
I would like to know the " EXACT" protocol you used with Reeflux, as I have treated. many tanks in the last 3 years with reeflux including my own with 100% success. There is a method, and it must be followed.
Don't get discouraged this forum will get you through to the other side.

 

[Lavey29]

Also close up pic of the algae would help to determine if simple GHA or briopsis instead which is harder to deal with.

 

[Dave Zale]

30 gallon tank, two 2 hang on back filters,uv sterilizer, 4 fans, finnex lighting, 10 gallon water change every 2 weeks, 2 clown fish, and a cardinal, 1 crab which i assume was attached to one of the corals. Numerous mushroom rocks, 1 green kenya tree, 1 toadstool, couple zoas, 2 leather palms or fingers, star polyp, gorgorian 2 trees and a couple i have no idea what they are yet...you know freebies for spending a million dollars on line. 1 capsule per ten gallons, broke them open and put the powder, i have no outside anything on any of my tanks

 

[radfly]

This is not a 6 year plus discussion...