Greg's 75g

[Enigma]

Oops. Used the original image location instead of the one in my Photobucket account.



The acro eating ones don't have the two pronounced "lobes" on the arse end. The other baddies are reddish and have three lobes.

The ones you have are harmless. I've got them in one tank. I spent a couple of hours trying to get a grip on what's what.