Cleaning algae off sand/rocks using Hydrogen Peroxide?

[Mike Tan]

Battling bryopsis, I have decided to remove all the sand in my DT and clean them using Hydrogen Peroxide. I bought 6% H2O2 solutions and put 1 part h2o2 and 4 parts water. Put some sand with LOTS of algae attached to them and this is what happened.

[S_S]

U remove all??? U gonna kill yr bacteria and gonna face ammonia spike...i dont think its a good idea to remove yr sandbed.

[Mike Tan]

I just removed 80 to 90% of my sand. My sand is just around half an inch thick of really coarse sand. Although detritus flying around is a problem, my tank quickly blows it down my sump and straight into my filter socks.

I still have a refugium with sand bed and miracle mud in it plus my live rocks. Hopefully I won't have that huge of an ammonia spike!