I am guessing that is a Rubbermaid tub. I have seen a few builds that have used these and it is giving me ideas, just like these photos. I have several of these tubs from 50 to 300 gallons and now I have the gears turning figuring out how to expand my system :xd:
This won't be setup for long. I have a 250 gallon corner custom frag tank waiting to be built. I just need to head to Home Depot and pick up cinder blocks for the stand.