what are you wanting to keep in the 30 gallon tank
i would say no more than this
2 clowns
1 sand sifting goby
1 dwarth angel
thats about ur lot
inverts dont realy put a bio load on your tank
so you could put summthing like this
1 cleaner shrimp
2 peppermint shrimps
5 dwarth hermits
5 snails
plenty of shells
and a mithrax crab
if you wanting to keep a tang or a large angel
you have got no chance also you wouldnt be able to
just buy them all and put them all in you wuld have to do it ove a
6 months period maybe longer
cheers ritchie
