Hi Kathy I do keep some red ramshorns in about half my tanks where I don't want to keep other scavengers, like fry tanks. I find these are much easier to remove than the Malaysians when I don't want them in a specific tank anymore. I have used Fluke Tabs to kill hydra (and it works) but it hasn't harmed the Ramshorns or any fish or fry I've had but it would have been something I would have used to remove Malysians if I had known. Thanks for the tip. Do you know if Fluke tabs will kill planaria? I have some in three tanks that I want to use for spawning without breaking down the tanks. Tom Wojtech ------------------------------------------------------------------------- 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"!