I'm having a really hard time wrapping my head around lighting requirements.
Basically I'm struggling between getting a biocube, and using my current 20 FW
tank for a saltwater tank. The problem is I don't understand what kind of lights I should get for my twenty gallon. I already have just a normal fluorescent light hood, can I get coral supporting bulbs for that? If so what the heck are they? Some sort of T number or not? It would be great if someone could break it down for me...!
Also, I just got enough sense to go look at the current bulb in the light
it's a T8, but it's only a single bulb fixture. . .