hydrogen peroxide

cremer9

Butterfly Fish
#1
Should I use hydrogen peroxide to combat hair algae yea or nay Iv gotten more hermit crabs and more snails buy the algae is thick and hard to manual remove I can't remove the rocks to get it all and am trying to pull up patches with a tooth brush Please weigh in on the peroxide pros and cons
 

jda123

Dolphin
M.A.S.C Club Member
#2
Get some urchins. Pencils, pincushions and rock urchins from the Florida Keys are good, but the pencils and rocks will stay on the turf algae better and they don't pick up your snails and hermits as decorations. Nitrate and phosphate cannot be too high for urchins to thrive. If you don't mind spending more, tuxedo urchins are great too.

If your tank stays at, or below 78 degrees, Mexican Turbos are good too, but they really suffer even at 79 or 80.

In the end, I have found chemicals and media to not work very well. Natural stuff is better. Keep on manually removing it, too. You will win eventually.
 

TheRealChrisBrown

Reef Shark
M.A.S.C Club Member
ex-officio
#3
I’ve done peroxide dips, the corals come out gleaming white (skeletons of frogspawn for example)…..but GHA always seems to come back on the exact same corals/rocks and in the same location.

My two cents, it’s a band aid on a bullet wound.
 

SynDen

Administrator
Staff member
M.A.S.C Club Member
M.A.S.C. B.O.D.
M.A.S.C President
M.A.S.C Webmaster
#4
Ya, totally agree with Doug on this one. Much better to handle this naturally then try and throw chemicals at it. A few key additions to the clean up crew can do wonders over the long term. Pull out any long tufts by hand and let the CuC do their thing.
Using chemicals generally only masks the problem for a short time. You can't dose peroxide forever and eventually the GHA will come roaring back and often times it comes back twice as bad as before.
 

jda123

Dolphin
M.A.S.C Club Member
#5
I forgot to mention that one key to not having algae pop up is not having places for it to get a foothold. Rocks with film algae, film bacteria, live and growing coralline, etc. do not have hair algae growing on them. When you use chemicals like h2o2, you kill everything on the surface of the rock and the stuff can come right back. Bio diversity is the key but it has to be able to colonize. The urchins/snails will eat the algae down but not sterilize the rock where nothing wants to grow again but the algae.

Unfortunately, dry/dead rock is a great place for algae to find a foothold. Nobody tells you this when they sell it to you, but in the end some cultured rock from Florida is often better and cheaper since it is covered in stuff and algae doesn't take hold very well to it. Mined limestone or other rocks painted purple and sprayed with bacteria are also sterile and a good pitri dish for algae.

Like The Real Chris said, any direct killing is temporary and the algae will come back.

In the end, a pack of diverse things, substrate, mud from IPSF or the like will win, but it takes time. You can also just order a 10-20 pound pack of real live rock from Florida to help get things going. Any of these needs lower levels of residual no3 and po4 since they are poisons to inverts at higher levels... they don't have to be like ocean-like levels, but also cannot be just out of control.
 
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