brown things on glass

[kennyfish]

This is the best I can do for a photo. These small worm type things have been crawling around on the glass for a month or more now. They are 2-3 mm long and move a good speed when they want to. They seem to have a white head and forked tail.

 

[Anonymous]

Flatworm. There are a couple types that are found in reef tanks.

Do you ever see these on your soft corals? I have the "on the glass" ones and the "hang out on soft corals" ones, and I always wondered if they were the same.

I put them somewhere on the spectrum between harmless and annoyance.

There is one kind of flatworm, very reddish bown, and darker, that can form big sheets on the sand and rock. Those can be a real headache as they multiply like crazy and while not overtly harmfull, they are very very ugly. I do not think that this is one of those, but it is hard to tell with the blurry photo.

 

[kennyfish]

These are very small and I don't see them any where else. They are the size of a pinhead or the ball of a ballpoint pen which leads me to believe they are some kind of larval stage, instar or whatever. What I am really worried about is this being some kind of parasite building up a population.

I have another picture here taken at 300mm zoom. It is hard to get the shot because I have to use a auto focus overide button and my hand on the camera is causing a little shake even with a tripod. If you put a dot on a piece of paper, thats how big this thing is.

 

[SnowManSnow]

yea flatworms. If they seem to target a particular coral you can do a short FW dip and nuke them. I think 6lines eat FWs don't they????

B