Hi Peeps Yes back again. Right my tank i have now found out is 160 gallon corner tank, thanks for help with co2 and inverebrates now the next thing i need to know is the community fish im setting up. The fish i have a blurred idea on, im looking for lots of fish but at all levels. I wonder if anyone knows and links or info on what community fish live at what level so i can mix and match and get a good spread. Im having cories cats etc at bottom need info on middle and top but im not interested in mollies or guppies in this tank cheers