This is just a hair over 1 watt per gallon.
1wpg is insufficient to keep almost everything. Sorry, I know that's not what you want to hear.
I don't like to recommend these, but i know that Odyssea makes a 30" 130 watt lighting unit that sells all over for about 70-80 bucks. This would give you a LOT more options.
Odyssea is a pretty low end brand, but I don't know how you can make a bad fluorescent fixture... not much to them.