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[Reeflogic]

Welcome to R2R!! I'd leave the liverock alone and just stick to more frequent water changes to lower your nitrates. There are other options out there for reducing nitrates, but you should spend your money on lights first! (if you want to include happy, healthy corals!) Also, watch out for the tang police lol! There are TONS of informative threads here on R2R to get you going in the right direction!

 

[Diesel]

If it just No3 problems and I most cases to high you can do just regular water changes, feed less on the livestock and adjust your skimmer a bit.
You can also but only if WC won't help use some GFO in a reactor or just hang it in a mesh bag in fast moving water in your sump.

 

[jennegage]

Soaking liverock in straight vinegar doesn't sound like a great idea to me . . . though I'm about as far from a "pro" as you can get.

I would think that'd pretty much do in all the "live" in your rock.

Tested it. Rocks look amazing. Algae had built up too much. Plenty of other live and furry rocks left. Seems like a relief just to get some of that stuff gone. Fish doing great so far ..

~Bruce

 

[Maritimer]

Awesome!

The remaining liverock will (over time) seed your shiny-clean ones, so you're probably OK to do one or two pieces at a time - over a period of weeks/months - with the understanding that you may lose all the living things in the rock. I know that a lot of folks will use hydrogen peroxide and a toothbrush to remove hair algae as well . . .

~Bruce