Digitate Hydroids

Crabs McJones · Sep 15, 2019

So I'm walking past the tank at 1:30 am last night.....yes, crabs is a night owl. And I saw an unbelievable amount of digitate hydroids all over the place. Does anyone know of a predator or a way to get rid of them? Or at minimum reduce their numbers?

WV Reefer · Sep 15, 2019

Crabs McJones said:
So I'm walking past the tank at 1:30 am last night.....yes, crabs is a night owl. And I saw an unbelievable amount of digitate hydroids all over the place. Does anyone know of a predator or a way to get rid of them? Or at minimum reduce their numbers?

Starve them out and pluck any that are causing problems. Mine didn’t last long.

tweeter · Sep 15, 2019

WV Reefer said:
Starve them out and pluck any that are causing problems. Mine didn’t last long.

How do you starve them?

WV Reefer · Sep 15, 2019

tweeter said:
How do you starve them?

Quit feeding them.

.

moz71 · Sep 15, 2019

I posted similar question this morning. I have thousands growing all over including sand on snails everywhere. I need to do something as well. I am even in a fallow period and haven’t fed rank in a month and still there unaffected. I am thinking a copper and butterfly when done with fallow as I heard they MAY help

Jay Z · Sep 15, 2019

I heard they choke on glitter.

Crabs McJones · Sep 15, 2019

Jay Z said:
I heard they choke on glitter.

Well jeez, problem solved!;Hilarious;Hilarious;Hilarious

reef lover · Sep 16, 2019

Pluck them out with tweezers, careful not to drop any.
As a side note when i removed mine i wiped them onto a paper towel and then foolishly wiped my hands off with said towel....stung quite a bit...so be careful....

Crabs McJones · Sep 16, 2019

reef lover said:
Pluck them out with tweezers, careful not to drop any.
As a side note when i removed mine i wiped them onto a paper towel and then foolishly wiped my hands off with said towel....stung quite a bit...so be careful....

Only issue is they pull back into their hiding places really quickly. The second they sense me near them they dart for the shadows

Florida Sunshine · Sep 16, 2019

I am not sure how different they are but I finally got rid of my colonial hydroid infestation. Combination of fenbendazole cut them back by a lot. Any one I have seen since that, I pull the rock, dry it, bleach it, dry it bleach it, dry it and only then can it go back in the tank.

siggy · Sep 16, 2019

Florida Sunshine said:
I am not sure how different they are but I finally got rid of my colonial hydroid infestation. Combination of fenbendazole cut them back by a lot. Any one I have seen since that, I pull the rock, dry it, bleach it, dry it bleach it, dry it and only then can it go back in the tank.

What no flame thrower ???

Florida Sunshine · Sep 16, 2019

Tried. It didn't work. (Seriously I did try to burn them off and they came back)

reef lover · Sep 16, 2019

Crabs McJones said:
Only issue is they pull back into their hiding places really quickly. The second they sense me near them they dart for the shadows

Ya def got to be quick with them. I found it helped coming from the side and not directly over them.

moz71 · Sep 16, 2019

I wish I could do this but with thousands it is impractical. Crabs, I wish you success pulling. I may try the fendendzole

Chad3407 · Sep 19, 2019

moz71 said:
I wish I could do this but with thousands it is impractical. Crabs, I wish you success pulling. I may try the fendendzole

I treated with fendebazole a month ago and noticed 4 in my tank last night. I may treat again and hope a second dose knocks them out for good.

TK_KW · Oct 11, 2019

any luck @Crabs McJones? i to have them. Not practical for manual removal in most of there locations. these little pricks are the devil, i swear. What is Fendebazole treatment? Ever time I ask anything about information on these guys, I get no further ahead. Even on askbrs nothing. Soooo annoying, mine are even out under full light, they could care less.

Crabs McJones · Oct 11, 2019

TK_KW said:
any luck @Crabs McJones? i to have them. Not practical for manual removal in most of there locations. these little pricks are the devil, i swear. What is Fendebazole treatment? Ever time I ask anything about information on these guys, I get no further ahead. Even on askbrs nothing. Soooo annoying, mine are even out under full light, they could care less.

Same here. i noticed they're getting even higher in numbers in my sump between my fuge and my return chamber. Swaying in the current. Haven't been effective at removing them yet.

moz71 · Oct 11, 2019

I just dosed fendabazole last night. I literally had thousands of these digitate hydroids. They were even growing on my snails. Amazed me how they were even growing on the sand. Well. After 12 hours so far I can only see a couple but look like shriveling. I will be beyond joy if eliminated but happy even if I get down to a couple. Even though they didn’t bother corals they bothered me greatly.

TK_KW · Oct 11, 2019

moz71 said:
I just dosed fendabazole last night. I literally had thousands of these digitate hydroids. They were even growing on my snails. Amazed me how they were even growing on the sand. Well. After 12 hours so far I can only see a couple but look like shriveling. I will be beyond joy if eliminated but happy even if I get down to a couple. Even though they didn’t bother corals they bothered me greatly.

What is the process for Fendabazole?

TK_KW · Oct 11, 2019

Crabs McJones said:
Same here. i noticed they're getting even higher in numbers in my sump between my fuge and my return chamber. Swaying in the current. Haven't been effective at removing them yet.

Literally useless manually removing, their so hard to get at. I'm honestly shocked by the lack of information on them? I've tried to just relax and let it be, but currently annoyes me sooo bad