question on refugium!!

[systemfan15]

What exactly is a refugium ? Do i need a sump for a refugium? How does
a refugium work? And where does it go in the fishtank setup?#ed_op#br#ed_cl#

[dakar]

Just reviewing any unswered posts here... I trust you've found the answer?

[PhatBrdr427]

Browse around other topics about refugiums. thats the best way to learn... thats how i did. i already knew in a way, but didnt find out what they really did until i sought out the info.