Digitate Hydroidd

[TK_KW]

#reefsquad #Reefsquadleaders @Crabs McJones @Brew12 @KJ @Randy Holmes-Farley @Lionfish Lair tag others

Ok, so my battle continues. I have thousands of these guys. HELP, cause I'm about to tear down this tank.

How do they spread? Would specifics flow rates through a UV help decrease spread, or doesnt it matter?

If you rip off there feeder arm, does it die of or grow back?

Manual removal is not an option

I'm going to test dipping a rock in RODI water that has them on it to see if their affected. Will this cause any die of on rock if I limit it to a 5min dip? Is this a safe idea?

Understandably there is no apparent known preditor. But what other approaches can I do?

One would say with nutrient control they may die off. BUT what does that exactly mean "nutrient control". My tank reads zero Nitrates and zero Phospates constantly. But all lps and sps thrive. My Chateo has a constant steady grow. And minimal hair algea in tank, although I think I do see Bryosis but cant say for certain at this point.

Read the page regarding Fendbendazole, but seems mixed reviews regarding it. How much merit is there to this method. Especially with coral/inverts in the tank.

I find it shocking the limited information on these, extremely frustrating.

Crabs, I think you should update your critter page, and put these devils on that list. Their the plague.

PLEASE tag as many people into this post, who has dealt with this. Or can shed more light. Someone has to have something on these guys that could help. I'm at wits ends.

HELP

 

[Crabs McJones]

Nutrient control in this aspect means little to no extra food floating around the tank. Try to feed only what your fish will consume and not much more. I've noticed mine going down slightly by doing this.

 

[Dsnakes]

They are a pain and can wreak havoc on any coral they setup near.

I tried using superglue over some of them. I think my population of them went down the most once I cut feeding reef roids, and rinsed my food of the tiny particles.

 

[flchamp89]

I also take a toothbrush to mine during maintenance. Kinda cool.

 

[TK_KW]

And people who say Digitate Hydroids are sensitive to light, are absolutely wrong. These things could care less about light or high par.

 

[TK_KW]

I also take a toothbrush to mine during maintenance. Kinda cool.

If you can get to them....my tank is 30" deep, and due to the volume of them, I've tried a brush etc, they just continue to bloom

 

[TK_KW]

They are a pain and can wreak havoc on any coral they setup near.

I tried using superglue over some of them. I think my population of them went down the most once I cut feeding reef roids, and rinsed my food of the tiny particles.

How long did you cut roids for? What do you do for your corals then?

 

[Brew12]

I've heard that peppermint shrimp can eat them but they prefer other things and may go after coral, first. I've also heard that angelfish will eat them. Not sure how true that is. They are one pest I'm happy to have never dealt with.

I would expect it to take around 2 month to starve them out. However, if you have a lot of pods or rotifers in your system, it could take longer. Most coral will do fine with just the NO3/PO4 and light.