> Jerry > I've seen these before and they are planarian. > Another possible culprit are oligochaete worms. I have seen them on numerous occasions in aquaria. They normally indicate an abundance of nutrients (excess feeding) when they reach noticeable numbers. However, if they should turn out to be planarian flatworms I have known them to eat fish ova, and I have had problems with their mucus rendering food unappealing to fish. This has happened in particular while feeding chopped earthworms. In spite of this being one of the foods guaranteed to provoke an enthusiatic feeding response, once a planarian has crawled over it it will be refused by many cichlids. Pete Liptrot Bolton Museum Aquarium Le Mans Crescent, Bolton BL1 1SE 01204 332200 ------------------------------------------------------------------------- This is the apistogramma mailing list, apisto@listbox.com. For instructions on how to subscribe or unsubscribe or get help, email apisto-request@listbox.com. Search http://altavista.digital.com for "Apistogramma Mailing List Archives"!