I suspect that you are not running a chiller? If you are not, then I would suggest getting two fans and blow them at your water surface. It will reduce your water temp to between 27-28 degC which will be sufficient for keeping fishes as well as most LPS and softies.
Anyway, I would propose that you use an external filter e.g. Eheim, Jebao etc as it will allow you to use media such as carbon and phosphate removal media which are necessary in my opinion.
Lightning wise, 8W fluorescent is sufficient for fishes but fluorescent which is ard 6500K will cause algae to grow very quickly in your tank.