hi Mike, thanks for your answer about the yellow stuff on the tank glass. When i got the tank in question i did clean it up thoroughly even using a blade to get rid of any build-up on the glass. i bleached the tanks too. The marks still remain on that particular tank. I though about acriflavine (tripaflavine) as well but the silicon seal is clear. oh well.....i'll see ! A question about quaranteen of wild caught fish. Do you guys keep the fish for 4-6 weeks in a tank and just check on them or do you systematically treat to get rid of some of the "germs" these guys will clearly be coming with? If so, what type of treatment do you advise? They are a few wholesaler/importor on the list so i guess you guys/gals have lots of experience in that domain. Just curious about other people do on that matter. thanks for any answers. PS: I'll be gone on a scientific cruise from jan 12th to feb 12th, so please don't be surprise if I cannot reply to personal e-mail you might send to me. Yvan Alleau 450 SE Atwood Ave Corvallis, OR 97333 (541) 752-0320 http://southamericancichlids.com PLEASE NOTE: new address and phone number College of Oceanic and Atmospheric Sciences Oregon State University "When you're far from everything, you're getting closer to the essential" ------------------------------------------------------------------------- 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. apisto-digest@listbox.com also available. Web archives at http://lists.thekrib.com/apisto Trading at http://blox.dropship.org/mailman/listinfo/apisto_trader