Throw me some ideas

[kraftyforu]

I have a tank that I acquired with a good amount of live rock and some corals. I moved all the corals to other tanks and was planning to set this one up for my wife, so she can put what SHE wants in it.
My problem is that there is a large amount of hair algae, that has not subsided with repeated water changes and manual removal, and a large amount of colonial hydroids. Now there is no livestock in this tank except a single hermit crab, feather dusters of all sizes and colors, and some very nice red and orange sponges.
What I need is ideas about removing the algae issue and the colonial hydroid issue without killing the feather dusters and sponges. My wife would also like to be able to start her tank up as soon as possible.

 

[Rob.D]

Run GFO aggressively fro the hair algae and you can target burn the hydroids with a small torch or kalk paste them.

 

[DFW]

Maybe remove the creatures that you want to save to another tank, and then scrub tank clean before starting all over again? Keep the sponges submerged in tank water!

 

[Titanwerx]

My Tangs took care of the little bit of hair algae I had. Also would suggest running GFO and some Macro algae in the refugium.

 

[sureal00]

I would run phosphate sponge a couple times in the tank.Remember that you cant leave it more than 48 hours in the tank.I like to run mine about 30 hours and remove. Give it about a week and I am sure the hair alage will go down a lot.Phosphate rx is also a great product for phosphate removal.

 

[Titanwerx]

Here's a link to another post about the issue: https://www.reef2reef.com/threads/a...atic-algae-and-the-means-to-control-it.87351/

 

[hart24601]

GFO and lights out. If all you have is feather dusters and sponges they don't need the light (assuming sponges are NPS). Just manually remove what you can, run GFO to remove phosphate as the algae dies and keep the lights out.