Myka vs Valonia Round 672

[Delphinus]

FWIW .. I am dealing with a TERRIBLE valonia infestation in my 20g right now. What seems to have stemmed the tide is an introduction of 3 or 4 emerald crabs and a green urchin. I have a green urchin in another tank and that tank is valonia free (although it has hermits so I wasn't 100% on whether it was urchin or combination urchin/hermits to thank for that).

Anyhow, about 6 weeks on, I'm noticing significantly less valonia. The bigger ones don't go away but I am able to remove those manually (or the urchin uses them to decorate himself).

I'm not 100% sure of the latin id on the urchin but this has been one of my favourite algae controlling purchases I've ever made (so much so that I now have 2. ). He does wonders for filamentous algae too. Not sure if he'd go after caulerpa too, but I should see if I can find a caulerpa infested rock that I could try an experiment on.

Anyhow since I can't give you an id to help you if you want to find one, here's a picture:


If you see one of these, try it. Only thing as a decorator urchin, be prepared to have to glue down EVERYTHING in your tank that you don't want rearranged. Zoanthid frags are a favourite...

PS. I'm also eating my words from the past that I've never had emerald crabs deal with valonia. I do have them now and they are indeed doing their job (I can see them). The problem is that one crab is probably only good for removing so many valonias in a time period .. and so if the valonia can replace themselves faster than the crab can eat them, you have a problem. With the case of my 20g, it seemed that I needed a good 3 or 4 before the tide was turned.

[Oscar]

Originally Posted by Delphinus

FWIW .. I am dealing with a TERRIBLE valonia infestation in my 20g right now. What seems to have stemmed the tide is an introduction of 3 or 4 emerald crabs and a green urchin.

I am still battling hair algae and some pockets of valonia. The display portion of my tank is about 25G. I added one emerald crab about 4 weeks ago. He has doubled in size since then but I have not noticed him eating valonia yet, that was the job he was hired for. Maybe I will add another emerald crab.


But I do have two urchins who look like this:




They keep the algae to a minimum on the back side of the rocks but rarely come to the front where the algae is the worst. Maybe if they get hungry enough or I keep the lights off for a few days they will work on the front of the rocks.

I have peeled a few of the larger algae bubbles off by hand.

I am thinking of getting a sea hare to help out with the hair algae, I have read somewhere that some people have seen them eat valonia as well.

[Myka]

Thanks for the links Mike, I will take a look!

Originally Posted by Oscar

I am thinking of getting a sea hare to help out with the hair algae, I have read somewhere that some people have seen them eat valonia as well.

Your rocks look like they have a lot of detritus settled on them. Do you blow them off with a turkey baster? I find that is a key part of battling hair algae. Although I don't see any hair algae in the photo of your Pencil Urchin. You should be able to get rid of the hair algae without getting a Sea Hare. Have you read the Guide in my signature?

[Myka]

UPDATE:

I know I have talked about this on other threads, but figured I would record it here too as the battle continues...

So I have made a couple dramatic changes to my tank in the last 6 weeks, and have noticed a huge DECREASE in Valonia!

I changed my lighting to 2x250w DE MH. It currently has crappy Coralife 10000K bulbs that it came with, and crappy reflectors. That's ok because I don't want too much PAR, or my LPS will get roasted. I started the lighting slowly with two 1 hour spurts, eventually getting to two 2 hour spurts, and then going to one 4 hours spurt this was over the course of 3 weeks. That was too much and a couple corals started bleaching, I've knocked it back down to two 2 hour periods.

The other thing I changed was I started some Zeo additives. I bought the Zeo Nano Power package. The Pohl's Xtra and the Amino Acid LPS ran out after only 10 days, but I am carrying on with daily dosing (1 drop per day) of the Coral Vitalizer and the Sponge Power.

Now, I don't know if it's these changes or something else going on, but there sure is a HUGE difference in the Valonia. Worth a shot for anyone else giving it a try. I know from talking to a few people using the full Zeo system that Valonia was the last algae to disappear. So that's why I figured I would give the Nano pack a shot.

OR

Maybe the change on bulb Kelvin I made in December (I think it was?) when I was just running T5s finally did the trick? Or maybe the Emerald Crabs finally caught up? Or maybe the Kole Tang has actually been doing some trimming? I have no idea really...all I know is that SOMETHING is working!

[saltyrigger]

The reef shoppe in Lloydminster has emerald crabs

[StirCrazy]

sorry I missed this thread untill now. Emerald crabs are the key, 3 of them in your tank, and remove the large one manualy. Don't worry about popping them unless they are going sexual, they are a single cell algae from what I have read. There were bigh threads on them on RC and here about 7 years ago. for my tank I had them pretty bad, I poped all the big ones and then let the emerald crabs clean up the rest.

Steve

[Myka]

That's interesting about them being single cell organisms. I do have 2 Emerald Crabs in there already, and I suck out as many as I can during waterchanges. It really is getting a lot better lately!

Originally Posted by saltyrigger

The reef shoppe in Lloydminster has emerald crabs

This tank is still in Kelowna, BC. I do have to make it to The Reef Shoppe though!