i bought this little 7 gallon bow front (on sale at ***** for 12 bucks) and i modded the NO fluorescent strip and put 2 of the smaller spiral compact fluorescent bulbs in it (cool blue) and it has mushrooms, zoos, gsp and xenia in it. the gsp hasnt / probably wont open but the zoos and mushrooms are doing well, the xenia is pretty ok, i think its just getting too much flow...
so... if you know anything at all about electronics you can go to walmart and pick up some sockets and spiral "money saver" type bulbs (the cool blue ones look better than the others) you could mod a strip light.
others may not agree with that so... do whatever you want. just thought id let you know its working perfectly for me.
we have a 55 DT with 260 watt pcs and the mushrooms look MUCH MUCH better in the 7 gallon than the 55 so... softies in a small tank with those spiral bulbs must be a decent combo. you could also mod and get 2 of those 10 watt 50 50 bulbs from *****... if you wanted some actinic action going on.