So I have a ten gallon that was going to brackish. After seeing how there really isn't much to go in it I thought why not just saltwater. For a tank that size do I really only need a power head in addition to the normal hardware? Would I be able to keep a clownfish and some kind of goby? So my question is is it really worth it to try this out? I don't want to spend hours researching only to find it would be a horrible first saltwater experience. I have experience in freshwater and if I was to do this, it would be limited to ten gallons. Thanks for the input!
FOWLR tanks basically are just like freshwater. The only difference is like was already said, wanting to use ro/di water to keep nitrates down. There isn't really a ball of moss that will help control them like in freshwater tanks and the algae growth can easily get out of control.
Long as weekly water changes are kept going it should be fine as long as you stock appropriately. There aren't too many nano fish to choose from. Everyone wants a huge tang or something else that just won't be able to survive in a small tank. People tend to forget that some of these fish get huge or travel huge distances in the oceans and seas...compared to freshwater sources which can be much smaller.