AEFW and mithrax

Kent E

One Millionth Poster
Premium Member
Just wondering if anyone has an AEFW outbreak and have a good amount of emerald crabs in the tank.
 
Funny you mentiopn this . Before I noticed I had AEFW's I had a mithrax that appeared to be eating on one of my colonies........Later it was the first to show AEFW damage.
 
I finally bought some mithrax again for bubble aglae and they do hang out in the colonies. THey are picking at something. But what got me thinking was, some people noticed a quazi link between interceptor and AEFW, of course this was cercumstantial and has no real merit at all. I was one who sacrificed my mithrax for the interceptor treatment. Later I noticed the AEFWs.

I have been lucky in that the AEFWs have been negligable in the tank, I don't know why. As I put these new mithrax in the tank and see them messing around in the colonies and eating something without bothering the coral, it makes me wonder.

Is there simular anecdotal evidence out there? Does anyone have plenty of mithrax and a bad AEFW outbreak?
 
I bet it will be hard to find someone that has both sps and some mithrax crabs . Just like most do not have acro crabs.

I will add that I have red bugs and lots of acro crabs .........I have also had the AEFW's but remove the mithrax prior to them showing their ugly heads.I haven't seen them for sometime or I would take that same mithrax and try to see if it would eat them out of a cup or something.
 
I have 5

I have 5

I have five in my 55g bb, sps dominated tank, they come out at night and do seem to end up on my colonies, sadly I had one crab that came with a colony, a supposed "friendly," but everytime he was on a coral the coral later died, I never saw AEFW, but one of the corals has no come back, I am not sure if he just disturbed the PE or just was actualyl munching away. BTW he wasn't a Mythriax, he was somethign else, small fuzzy crab, blue eyes, tiny, lived in my monti colony, but eventually migrated. I have 2 acro crabs and they are awesome eating any paarsites.

cheers
David
 
Mythriax crabs are green and they do not live in corals. They are free ranging scavengers. Correct? What and if any damage can they cause to other coral? I think there may a point to MC in tank and decrease effect of ACFW damage.
IME, hairy and fuzzy crabs grow up to be coral killers.
 
<a href=showthread.php?s=&postid=7630555#post7630555 target=_blank>Originally posted</a> by AcanLord
clkwrk
What kind of problem do you expect MC to cause in SPS tank?

Normally I wouldn't ......I just happen to see the same crab in the same sps more than 1 night and had bite marks and could have sworen I seen it eat a polyp but that could have been a flatworm. That crab is in my sump so I think I will put it back in the display or into my prop tank to see how it really does once again.
 
Someone needs to try this experiment... I would but I do not have either... AEFW or emerald crabs, would be very helpful to know if they would be a AEFW predator..... :)
 
Emerald crabs are unpredictable. Yes they are good at pick the rocks and cleaning detris. When they get bigger they can change there taste. I had one destroy my millie. It would pick at it every night until half was gone. It would even stalk my baby clownfish . But, it was picky, left other sps alone. No more crabs for me. especially hairy ones.
 
okay I found the pics of both the acro it was in and the culprit I thought caused it .....Latter I realize those were AEFW bit marks since those thread all started popping up everywhere.

Her the acro

acro-flatworms-2.jpg


and the crab
yes flat pinchers

bad-crabs.jpg
 
nope has flat tipped claws just like an emerald . I had 2 greenones but there gone ? Maybe they changed color?

Plus I have delt with my fair share of gorrila crabs and rock crabs.
 
There are probably lots of crabs called emerald but that is very different than mine. That crab is very bumpy where as most emeralds I see for sale are smooth and green. Perhaps that crab was troublesome.
 
Side note: Just saw an emerld ejecting babies from her "tail fins" under her body. She went to a spire in the tank and raised her claws high on her hind legs and floofed her tail and out they came. Very cool. Not someting you see every day.
 
I have Mithrax crabs in my tank, 3 or 4 of them.
I had an outbreak of AEFW when the Mithrax was in the tank. So IME Mithrax dosent eat AEFW.

Now i have done a 5 week treatment (Levamisol and Tropic Marine Pro Coral Cure) with quarantine so the AEFW are all gone!
 
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