Originally Posted by Old Dog 59
For your size tank 5.5 gal. you would need the 16" and with the stingray you might want to add 2 more hours of lighting. If you went with a Planted Plus I would say 4 hours max. These are really great lights. and the plants will do very well under the stingray.
Thank you! I'm just worried about algae but if the tank is heavily planted and I don't overdo the lights or the ferts, it shouldn't be a problem, right?