Birdsnest coral bleached out in 2 days after move under solartube

merkurmaniac

New member
SO I moved all of my stuff over to the solartube lit 34 gallon hex. Seemed like everything was going pretty well until one evening, I noticed that a tip of a branch of a small birdsnest coral frag (1.5" across) was white. I thought that it was growing from that tip. The next morning, and half of it is now bleached white. I moved it down to the bottom of the tank, and when I got home from work, the whole thing was bleached and dead. Like maybe 30hours for its demise.

Last night at 4am, I woke up wondering if it could have been some of the nudis that I had been reading about. I put the frag in a plastic cup and noticed some really, really small black things on it when I took the frag out. When I added water to the cup, they floated off it and began crawling around. They are still in the cup and I plan to look at them with my kid's magnefying USB microscope. I think that they have visible legs. I don't get the idea that they are nudis. Perhaps some opportunistic pods ?

So, with that fast a death, I am thinking that it was most likely the change of light with little or no acclimation from metal halide to suntube. I kind of bet that nudi's wouldn't work that fast...but I have no experience with them. Guesses ?
 
I have seen the things you are talking about. I have no idea what they are though. And I'm not sure if they are harmful or not. I got a bunch of new frags a while back and gave them a dip before I put them in the tank. And I had a bunch of those things die off. I never really thought much about it though. It would be nice to know what they are.
 
Here is a picture of him, magnified 100x. I used my kid's microscope that displays to a TV. I shot a pic with my camera.

The critter looks like a miniature lobster. It had antenna, and a bunch of legs. I bet its some kind of copepod.
critter.jpg
 
Dunno what this is, and I don't know what an Isopod is or looks like. This thing had all the features of a microscopic lobster. Wierd.
 
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