four weeks ago i set up a ten gallon tank. it clouded up, as i had expected it to, after a day but has stayed clouded ever since, despite my water changes of two gallons per day. does anyone have any idea what is causing my perpetual clouds? the occupants of the tank are two a. cacatoides (who don't seem distressed by the murkiness) and six zebra danios. there is a piece of driftwood, which i know leaks little or no tannins, some java fern, three e. tenellus, and a four inch layer of gravel. Bottom layer of gravel is mixed 1/8", 1/2", and 1/4". Top layer is 1/8" gravel. pH of water is approximately 6.8 and hardness is same as water bay area/san francisco/berkeley tap is like. any help would be appreciated! -frank _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. ------------------------------------------------------------------------- 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"!