View Full Version : Copepod ID
tinyfish
02/03/2010, 01:29 PM
These are 1-1.5mm long with a rounded head and a forked tail. They are on the glass. Sorry no picture, they are just too small for my camera. They are white.
Chiefsurfer
02/03/2010, 03:04 PM
are they "jointed" like a shrimp shell. or smooth like a snail body? If smooth, you might be looking at flatworms.
http://www.seaslugforum.net/images/m5836convb.jpg
tinyfish
02/03/2010, 03:34 PM
They do not look like what is pictured. They do not look flat. There are no segments.
dudley moray
02/03/2010, 03:46 PM
it may be an amphipod or mysis shrimp, copepods are really tiny like .1 of a mm
tinyfish
02/03/2010, 03:54 PM
These move slowly like a snail or worm.
tinyfish
02/04/2010, 02:05 PM
OK, here is the best picture I can provide.
http://i135.photobucket.com/albums/q145/warriorkin/saltwater%20fish/Feb42010003.jpg
_NaNo_
02/04/2010, 02:14 PM
flatworms, my brother just had an outbreak of them. he got a six line wrasse and cleaned them all up
DThompson
02/04/2010, 04:15 PM
They look like Acoel Flatworms as best I can tell from the pictures. The clear ones are harmless.
tinyfish
02/12/2010, 10:09 AM
I don't know what to do about these if they are a type of flatworm. They do not look like the orange or red kind. They do not have a "hood" or "wings".
After treating with Flatworm Exit and waiting a day, I did a 25% water change.
These particular critters are still in my tank. I do not see them on the coral yet.
Chiefsurfer
02/12/2010, 12:41 PM
the only flatworms to worry about are the ones with red in them as I understand it. Looking at a few that are particularly in-focus in your photo, they do have the split-tail. If they are clear, harmless, althuogh I guess could take-over the tank.
I am not familiar with using flatworm-exit, but I know that 99% of the "eradication meds" are VERY particular to being precise on amounts, and time-frame. If you did it entirely correctly, I don't know what to tell you. As stated, some wrasses should make quick work of them.
undrtkr_00
02/12/2010, 04:36 PM
Extra high doses of flat worm exit may be necessary. Wrasses may work, but may not. My sixline is useless for flatworms. :mad2:
The Velvet Sea
02/12/2010, 04:42 PM
Acartia tonsa is a very common species of copepod. I'd recommend searching for it on goodle for images to compare to what you are seeing. Good luck.
ChadTheSpike
02/12/2010, 05:00 PM
Thats not A. tonsa, A. tonsa is a calanoid species of copepod and wont be found clinging to glass. It appears that they are flatworms (the copepods eating kind not the coral eating kind).
tinyfish
03/15/2010, 11:50 AM
I have tried the extra dose of Flatworm Exit. The worms are still abundant. They must have come in on purchased coral which I dipped in hydrogen peroxide. Sturdy devils.
Besides a six-line wrasse, what other types of fish would eat these?
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