Lighting question
 

Ok so I have a 55G tank. 36" wide one. I currently only have 1 T5HO fixture above it with 10k and ancitic bulbs in it. I was looking to add an LED to it for just a little more umph and to add morning and night dimming effects. Only soft coral and fish in my tank. Not looking to power for sps. Any recommendations? Affordable ones that is.

Have a look at the reefbrites.

Would adding just 18" led fixture give me a little more power and color I'm looking for Or should I go 36" fixture like my tank is. What about using my t5 fixture for just 2 10k whites and led for blue or vice versa? Or both 50-50 splits? Any and all suggestions greatly appreciated. What about using two par38 with goosenecks? I'm new to all this

if you've only got softies and fish in there and don't plan to grow SPS then pretty much any combination that you suggested will be fine. Go with the set up that works for you financially and aesthetically. Whether it's pendants or or LED strip lights, 18" or 36" won't matter much to the inhabitants. All of them will look good.