Im new to the hobby. First off everyone has been very helpfull. Can someone tell me what a refugium is?. Also I seen one built from a aqua clear filter. Does anyone know If I should do this with my aqia clear I have. Im thinking of doing a 10 gallon nano. I see them where you can put the heaters in them. Please let me know. If i would need it or is it a good thing to have
Thanks
Thanks