Hi Helen, I just set the tank up a few days ago. I have a Fluval 304. I took some of the ceramic rings out of my older established Fluval 203, and put them in the new one. I also use a sponge as an intake strainer, and I put the sponge from my older tank on the new one. I also added some Cycle which is supposed to be bacteria in a bottle. Using all Tetra test kits, except for the PH which is a Pinpoint PH monitor, water condions are; Temp. - 80 f Ph - 6.7 Kh - 2 drops GH - 2 drops Ammonia - 0 Phosphate - 0.10 No2 - 0 No3 - 0 I hope this covers everything. ------------------------------------------------------------------------- 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"!