how much T5 lighting is enough?

[neilster1]

I have a 55g reef.. I was faced with the need to completely re-lamp my coralife 4x65w PC fixture because it was time to do so and I opted to buy 2 coralife T5 fixtures instead.. one is a 36" 42 watt and the other is a 30" 36 watt. They each have one 10k and one Actinic bulb.

My xenia, zoos and mushrooms don't seem to have any problem with the new lighting.. it seems a lot more blue than the pc's and I'm told this is to be expected. I just need to know if I need more wattage.. next coral to be added is an open brain that someone is giving me.

Thanks for the help!

 

[roka64]

I'm not too sure on the Watts, but you might experience an algae bloom within the first month or so, just be aware. I love my T5s, but I have a FOWLR. The blue comes from the actinic bulb, looks really nice.