i do have a 100 lbs of fiji live rock 5 years old plus live sand, i would like to eliminate the canister set up and just do a fuge with a skimmer.
Welcome aboard.
I would not eliminate the canister so quickly. What you want to eliminate is the sponge media which you are well aware has been quoted as a "nitrate factory". Use the canister to run media such as carbon, or if phosphates become an issue use a phosphate media and the same would apply to nitrates. Pick up a couple of media bags at PetSmart to keep on hand due to some media may be of fine particle. If the canister is taking up room you need then remove it.
Moe K asks a good question, Keys to keeping a successful reef tank. Maturity of the tank as you say tank is 5 yrs old? Test your water.
looking for advice on a sump and a protien skimmer what brand how big for my current set up and where to get the equipment.
Location........do you have room for a sump/refugium under your tank, inside the stand and it's going to be asked, is your tank drilled with overflow or will you be using a (HOB) hang on back. Skimmer............the sky is the limit, provided room for the skimmer and pump. True don't buy cheap, you'll not be satisfied and in a month will be out looking for a replacement.
looking for advise would you purchase a sump with a skimmer , or a refugium with a skimmer what will give me better results. thanx for all the input.
Shop around, make calls, BRS has sponsors, give them a call see what can be combined but please make sure you have the location for it to fit. If you're ok with seeing it on the side of your tank then go for it. If not then plan on where. If you're a good (DIY'r) do it your selfer then it could be easier on you or have a family member that has the experience. Lots of information at your finger tips. Good luck, welcome to the hobby, a new experience.