I'm in a battle against cyano ... Thursday night I am having 125 gallons of fresh ocean water delivered to do about an 85% H20 change. I'm in the middle of sifting through my sand right now and I want to bleach the decorative corals. Rinsing them under running water just isn't working.
I've added powerheads to improve circulation and am keeping my fingers crossed.
Step by step instructions would be nice!!

Thanks,
Scott

Water changes are good and all, I think 85% is a little excessive though. Have you tried vacuuming the cyano out yet? You need to find the source of your problems first. What are your parameters? Even if it is low there is an obvious problem because of the cyano. Perhaps your wet/dry needs to be cleaned or something has died in your tank? You can clean your wet dry by taking tank water and kind of rinsing the bio balls in it this will relaese any large particulate matter in the balls. This may help relieve your nitrate problem and in turn cure your cyano problem. HTH

Henry

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Tragedy is when I cut my finger. Comedy is when you fall down an open manhole and die.
-Mel Brooks

All of the parameters are at or very near zero, but is probably a false reading due to the cyano.

I have a 2" sand bed in the tank, 4 2" fish, and 2 6" fish. I feed every other day and am running a Red Sea Berlin Classic 24/7.

All of the bio balls looked clean upon manual inspection, and there isn't any material laying on the bottom of the W/D.

I'm stumped.

Scott

(I still need to clean the decorative corals)

You want step by step instructions,,,,,,here you go, http://www.athiel.com/lib/cya.html http://www.athiel.com/lib/txtfiles/cya2.html http://www.athiel.com/lib/txtfiles/cyano3.html

I think Joaco has a cyano section on his website also , but not sure.
I would not do a water change of that size.Do several smaller ones.
I have seen people say you can soak your coral skeletons in a 15-20% bleach solution, scrub well , soak for awhile longer , scrub again and start rinsing.Rinse several times and on the last rinse soak in water that has had de-chlor or a similiar product added to it . Once they have been thoroughly and completly rinsed, let them dry in the sun.I dont have these decorations so I can swear this will work,,,its just what I have read.HTH.

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In this hobby patience is not a virtue,,,,,its mandatory.
Jim's Marine Links

When you've rinsed until you can't stand rinsing any more, rinse ten more times!

Thank you, everyone.

I soaked, rinsed, rinsed, set in the sun, rinsed, rinsed, and will dechlor tomorrow.

Now on to the cyano...

Scott

i have a couple of large elkhorns that i bleach.
basically put them in a large plastic container pour the bleach in with the water(not much is needed) let them sit for a day or so. scrubing is usually not needed.

empty the water then fill with clean water. let sit for 1/2 day to a day then add new water let sit for a day and you could add the de-chlor that tbt suggested, although i dont but it couldnt hurt.

ill email you a pic of what they look like when im done.