dadonoflaw
New member
i recently decided to give t5's a try as actinic supplementation with 3 400watt mh bulbs most likely 14k or 20k so i am going for bluer lighting from the main light .how many t5's would i need on a 180. i notice you have 4 39 watt lights. how has this worked for you. would i need more for mostly sps. i think t5's look beeter filling in color in the tank than vho's or pc's. can you give some advice
