lights?

4bulb t5 on that should be ok. You would be able to keep some zoas shrooms and other soft corals. I had a four bulb over a 100gal for years and grew plenty of softies and zoas. For a fish only setup its just what looks good to you, wouldnt need a bunch of lights. If you want to keep sps and other light loving corals then yes you may need more bulbs or a good led or halide combo setup
I won't go into the led vs t5/halide debate as there's plenty of info out there on that lol. But in short LEDs look great but cost way more than a t5setup but after about6+years or so of bulb replacement etc, the cost balances out. Halides are great but get hot and do use a "bit" of energy and bulbs are pricey
I like t5s and halides

 

It all depends on what you would like to get out of your tank. You've said you may be interested in corals in the future, do you have an idea of what you would like to keep? LPS corals tend to have lower light requirements than SPS. There's alot of good stuff you can keep in tanks that have lower lighting output. Have you measured how much light your tank is getting? Tube lighting like you currently have can work to your advantage with good coverage over the spectrum. But the output will diminish as the bulbs age.

In my opinion, you'd have to figure out which direction you'd like to take with your tank first. Specifically, what sort of animals you'd enjoy having in there. Then plan your lighting appropriately around them.

 

I've got a 4x54 watt T5 on my 75 and I have had all sorts of corals thrive under those lights. As others have said, determine what direction you want to go before sinking $$$ into LEDs. Are you running the stock bulbs that came with the fixture? There are better quality bulbs you can get. Unless money is not a concern, then go ahead and get LEDs. /DesktopModules/ActiveForums/themes/_default//emoticons/smile.gif

 

To address your point regarding torch and hammer corals- they're pretty happy under lower lighting conditions as they're naturally found at deeper depths on reefs.

 

The fish will be fine with the lighting. The Damsels are known for being an aggressive fish so you will want to pay particular attention to it and the others. The pygmy angel might want to enjoy munching on any corals... That is just something you again will need to monitor when you start adding corals. If it were me, I would start by adding softies which are easy to keep and low-medium light requirements. Mushrooms, Ricordia's, zoanthids and leathers are low-medium and easy. If those work out after a few months, then you could begin trying LPS's such as frogspawn, hammers, torches, Acans, CandyCanes, etc for medium light requirements By month 9 of bulb usuage you are probably seening a drift in the light spectrum and will need to change the bulbs or look at different lighting. If you stay with T-5 lighting, your best bet is ATI's...like the blue plus bulbs. For actinic, the GE bulb will give the correct spectrum.

If you consider going to LED's, Reefbreeder's are an affordable option. Research, read, asking questions and knowing who is going to give you good information will be part of your key to success. Too many starting out, go all in and find in a month or so that they have majors problems with their tanks, fish and/or corals. So enough said :0)

Welcome and happy reefkeeping!!