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it took me a while but I finally got my new shrimp rack up this past weekend but still got lots of work left to do to setup the individual tanks. This is my 4th shrimp rack I have set up; I started thinking about it at the earlier this year when we leased out the warehouse at work where I had my last shrimp rack. The tanks on the current racks were due for a substrate change and I wanted to maximize the limited amount of space I have to fit as many tanks as possible. I also needed more tank space for my current breeding projects. I was able to secure some industrial warehouse racking from work and got Concept to build me some custom tanks. Rack is 4 ft. wide x 2 ft. deep by 6 1/2 ft high and consist of the following tanks; 3 x 20 gal (16" x 24" x 12") - divided down the middle for selective breeding 8 x 15 gal (12" x 24" x 12") plus 2 x ~18 gal reservoir tanks (18" x 24" x 11") for water changes / top-ups All the shrimp tanks are rimless w/ a 1" wide eurobrace on the top. Went the custom route as I wanted to ensure I could fit all 4 tanks on a single row as standard 15gal tanks are usually a bit wider than 12" after the trim. I also needed a way of mounting my float valves (for my auto top-up / water change system) away from the back as the HMF filter would get in the way if i went with them. Each tank will be individually filtered using a HMF filter driven by a central air pump. My previous racks have used canister filters but I needed to fit as many tanks as possible and didn't like the idea of giving up the bottom row of tanks for canister filters. I toyed with the idea of HOB canister filters but there would have been quite costly but in terms of power draw (and outlets) and capital costs. Decided against a sump as I wanted to flexibility to have a number of different setups and again, didn't want to give up the bottom row for a sump. Lighting is provided by LED striplights; each level has two 48" LED strips mounted on aluminium channels and attached to the underside of the plywood shelves. In all my past shrimp rack I use a simple auto top-up / water change system which consist of float valves on each tank which are fed by a couple of "reservoir" tanks. it lets me keep the water levels of all my tanks automatically topped up as well as lets me drip in new water during water changes unattended. Below are some photos after all but 1 of the tanks have been placed on the rack. Just did a fill test on some of tanks as will as added a test fitting a HMF filter. The 4th 15gal on the bottom row is as I still have to reorganized my power cables from my old rack to the right before setting up the final tank. The next step is to set up the tanks; set up the HMF filter, add the substrate and start cycling the tanks Also, still need to get the plumbing and hardware for my ATO system. Plan is to consolidate all my shrimps from other two racks, then break down the old racks down and add another section to the right of the new rack with another set of identical tanks