8 gallons is pretty small and I'm not exactly sure what to say about putting an Ocellaris Clownfish in it… But what I can tell you is that I have a Black and White Ocellaris Clownfish in my 10Gal tank along with 3 snails, and 3 hermit crabs. It's the only fish in my whole tank as I don't want to risk overstocking my small tank. Tank has about 12lbs of LR
and about 2 inches of sand. I run an Aqueon 20 HOB
filter and an Aqua Clear 20 as well. I also have 2 small power heads for good flow. I got my Clownfish for my B-Day back in early September and he's doing great! If you go through with it, just monitor your params and gauge your water changes. I do my WC
every 2 weeks but I do about 40% WC
and that keeps my Nitrates down to about 10ppm-20ppm. Don't listen to people that say it cannot be done. I've heard of people that keep Blue Tangs in a 55 gallon tank, they are healthy and look happy and the recommended size of tank to keep such a fish is 180 gallons!!! I know I might get hate for this, but I think it would be ok if it's the only fish...