bubbles in the sump can be taken care of without using a $260 acrylic tank. Just put something around where the water enters the sump. I use some LR
piled up around the outlet and my water drops almost 15ft. Just have the LR
come up out of the water so the bubbles will be dispersed. You could use a small container. I tried a 1/2 gal
pitcher that worked well at first. If you have water flow over or through some sort of wall, it works just like the bubble trap on most commercial sumps. You don't need or want bioballs in a reef tank anyway.
*180 gal Display, 100 gal basement sump, 33 gal refugium, 3x250 MH, 2x160 VHO actinics, zoos, some softies, LPS & lots of acros and other SPS.
*100 gal prop tank plumbed into main system w/ 2x96 PC lights and 1x150 MH,