Aefw or the dreaded black bug??

Daryl 1500L · Dec 12, 2021

Hello, I was wondering if anyone out there has come across this mast big that I have found terrorising my frag tank.

some people say black bug and some are say aefw.

T-J · Dec 13, 2021

The AEFW's that I'm familiar with are usually more of a tan/brown color. Are there a large number of these on your corals? What is it causing the coral to do? RTN/STN/etc?

Daryl 1500L · Dec 13, 2021

the corals are stn from the base up, I have 1000L display and a 6ft tank next to it full to the brim with frags,firstly they started to slime then slowly deteriorate.

I dipped a couple that looked bad and found only a few of these little worms but then once I decided to do a mass dip I found lots. but I didn't actually see any on any of the corals and I haven't seen any eggs on any of the skeletons of the corals.also the main display in unaffected lol.

I have dipped everything in the display tank yesterday and Sunday I will dip everything in my display and do each every other weekend.