what all do i need for a 55 gallon to do sps and zoas and lps
Decide which one of those you really want to keep, then build you tank to be successful for that particular species.
In the OCEAN there are areas of high light, low light, high flow to virtually no flow. Nutrient levels vary from virtually ZERO to water so turbid you can't see 3 feet.
Mixed reefs are certainly possible, but you will find the BEST growth/color can only be achieved by focusing your efforts on a favorite.
From personal experience, it is VERY tough to keep Sinularia and SPS in the same tank.
[ame=http://www.youtube.com/watch?v=ETxmCCsMoD0&ob=av3e]Abba - Money, Money, Money - YouTube[/ame]
But seriously, I have a 55 for sale if you are interested PM me.
Sorry if I'm stepping out of line mods, please LMK.