Am i doing this right ?

I've been growing this plant (the one in my profile picture) for about a month now. I use two 20 watt 24" fluorescent bulbs which are normally used for aquariums (sun-glo and aqua-glo) if that makes a difference. I also sprouted another plant a couple weeks ago. I just want to kno if this is enough power and how long shud i veg until i start flowering. I give it about 16 hours a day.

Since these plants are still relatively young and still in vegetative growth, you usually want to give them 24 hour light cycles. Especially using that type of lighting. The more light the more growth. I have my white rhino plants under a 400watt metal halide lamp and I switched my babies to 24 hours of sunlight and they are growing almost an inch every day. You can put your lights as close to your plants as they can be without burning. CFLS produce much less light than MH. Hope it helped!