I have been really low on cash lately but I have been able to fork out enough for a 10 gallon tank (used) for planting. I have a small c02 kit i bought for it for 30 bucks, but lighting is the real issue here. I have a flourescent (used) light with a coralife nutrigrow light (15W) on it. I know 1.5 WPG is not enough to grow what I want (a field of riccia and a java moss bonsai tree [i understand java moss doesn't require much]) I found an old light, one of those cheap standard lights for aquarium kits with the 2 screw in bulbs... and there are 2 small 15W lights on it (definitely not for planting purposes). Is this good enough? or should I throw in another 40 bucks (sniff sniff) for a clip on 25W light for the tank on top of the 15W floresecent?