First I want to say thank you for your warm welcomes, and helpful advice! ^^
Now I would like to toss more questions out there, yay!
I searched up sump information on the RB's forums and I stummbled across this link
Everything You Always Wanted to Know About Sumps, Part I by Greg Taylor - Reefkeeping.com
I saw other pictures of sumps, and IF I ever make our 90 gallon tank into a reef aquarium I will definately put a sump on just because it sounds like a good idea, so I'm going to learn as much about them as I can now.
So I was wondering, if I have a sump on my tank along with a protein skimmer, do I need a filter? and if I don't have a filter will I need to clean the sump? or will the natural system of the tank keep itself clean (via crabs, snails, ect...)?
Also I noticed one pic of a sump with LR maybe? in it, is there an importance to what I put in the sump, will it help filter out things? or was I looking at something different and just mistaking it for a sump?
Thanks~
I'm sure there will be more questions, but atm my mom is calling me ^^ and until I move out it's just something I'll have to deal with.