My newly purchased setup came with an Eshopps WD-300CS wet dry Filter as pictured below. I plan to convert it to a sump/refugium as follows, using eshoppes HOB overflows from a 25 high (seahorse tank with a HOB refugium for copepod/amphipod production), 20 high (not sure what to put in here, but likely a species tank), 20 high frag tank, and the new 75, all hard plumbed. Seeking opinions/advice to improve upon my idea.
