I have a 5.5 gallon with a 40 watt desk lamp shining over it. Right now, I have two what I think are micro swords that I have had for about a month. No fertilizers have been used and it looks like they hae grown about and inch or so in the past month. If you want your plants to grow rapidly, which, don't forget, adds trimmings to the routine, then I guess it would be okay.
-tetrabettaguy97
-tetrabettaguy97