building a sump, what do i need to put in it?

[fLshgear]

i am looking at getting a sump, or building one. i have a 50 gallon tank that is not drilled. i was going to use a pvc over flow. below the tank there is not much room i might be able to put a 24 x 12" foot print but it will be tight. i have extra 20's and 10's or a 15 tall or a regular 15 that i could put under there. what would be best?

what about baffles and where should i put them how many do i need and what do i put into the compartments? i would like to put my skimmer in there and heater i would also like to have a place to put cheato. what else do i need? what are all of those baffles for?


it is a reef tank, i have a coralife 65 skimmer to put in there. and i dont have a pump yet. what size of pump should i be looking for?