Some of these pinned threads are looong. im going to be here all night,lol
Thanks x
Marine tanks dont just happen overnight. People spend months researshing about marine and still learn new things after.
Like seffie said you need to have a look at the marine journal section and have a good read.
most people also go for plain backgrounds (normally blue or black).
if you go for marine then the live rock acts as the filter, the powerhead (Koralia nano) will move the water about and will keep the 'live rock' live.
You dont cycle a salt water tank like a freash water tank and the bateria is completly differet (wont live in each others enviroment). When you buy the live rock a small amount of the rock will die off. This is what will cycle the tank.
tsnks deffernotly not big enough for clown fish.
keep reading and ask question if need be.
good luck