I am very new to this hobby. I currently have a 20gallon freshwater that I want to convert. I'm thinking of keeping fish initially but eventually will want to make it into fish and corals.
My question concerns my lighting. I have a lighting apparatus that currently holds one 18" flouresecent bulb. It looks like it has enough room for at least 1 more bulb and receptacle and maybe 1 more.
Would it be okay if I just went to home depot and bought another 18" flouresecent and mounted it in my holder? Can I then use 2 30W VHO
bulbs? Or do I have to buy anything special to use those type of bulbs?