I am setting up a new 90 gallon reef tank that will be LPS and SPS. I am so confused about what is a budget friendly--not bargain basement and not Tiffany--that would be a good starting point. How many do I need to start with as I know I will be adding on eventually for dead spots. Does anyone have model numbers that I can look up? I have asked a couple of shops and all they keep telling me is it depends on how much flow I am wanting or needing. I DONT KNOW!! And they want to sell me something that is $300-$400 just starting out. Help, I am so confused!!