I have been researching for several months on setting up a 20 FOWLR and I know that is a little small. I don't have a whole lot of money. How does this sound: 20lbs LR, sand substrate (the 20g is now a FW tank, can I clean the sand I have in there?),Ocellaris (tank bred) or Percula Clown, one clown goby or neon goby (tank bred), either a Scarlet Skunk Cleaner Shrimp or a Banded Cleaner Cleaner. For Equipment I have two Penguin Biowheel Power Filters, one for 20g and one for 10g, a small cheap skimmer (recomendation please!), a Coral Life 24in 50/50 flourescent light, and an appropiately sized heater. Do I need to add any minerals for the shrimp to molt correctly? Thanks for your help.