Bioballs are worthless in a reef system but they are ok for a fish only system. What kind of pump? There are very few pumps that are good quality and actually last a long time with out restart issues in power outages and so forth. So with that in mind, is the sump worth it?????
What kind of acrylic cast or extruded, what brand acrylic was it made of, how good are the seams and workmanship that built it. How thick is the acrylic. Does it have eurobracing. Will the skimmer chamber be big enough for the skimmer you want to use. Will the return and overflow of the sump chambers be big enough to get the micro bubbles from re-entering your tank. It may be a heck of a deal and then again it might not fit your purposes at all.
As you can see all your questions end up in a big circle, that is because you do not know what you want to keep, and you do not have the basic knowledge yet. Now if you can answer those questions about the sump, it might be a heck of a deal. However, as of right now or after we figure out if you should buy that sump, quit looking at equipment and spend $24 on one of the books Dave mentioned.
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