Originally Posted by
lion_crazz
There are no cons to a refugium.
A refugium can:
-remove nitrates/phosphates/silicates
-offer a safe place for pods to reproduce
-be a predator-free enviroment for slow-eating and slow-moving fish and inverts
There are no cons as to what it does to your tank. However, do you have room for a sump/refugium in your stand, or wherever you chooes to put it? Can you afford it? Is your tank drilled, and if not, do you want to deal with the hassle and expense of an external overflow? Keep in mind I'm just playing devil's advocate, but there's some food for thought for ya.