: I have ran several tanks like this. I used no water moving devices at all. : Just homemade yeast reactors and lots of plants and lights. : Wow, that is interesting ... with apisto's in there ? Can you desribe them a bit more ( size, population ) ... ? Did you have to be careful to not overstock them ? Did you ever had any problems with them ? Thanks in advance, ------------------------------------------------------------------------- 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"!