I'm not fimiliar with the brand of pump, but as stated above you will need gang valves. I would get a set of five and connect it to a set of three valves. That way if you have a problem you can run a corner filter or extra sponge. I use sponges in all my tanks, 20 (+) and always have extra connections and sponges getting seasoned up. I also run two sponges for a week and move the extra one down to the next tank.
If you want a pump that has more than enough power, is not loud at all, allows for expansion and a good value get a Ponf Master 40. These pumps are great for deep water applications, you know that 125gal you will eventually buy. I use a Pond Master 100 in my fishroom, but I have run the entire operation with two 40s. I ran two larger kiddie type swimming pools and two 175gal vats outside this summer with a Pond Master 40 using sponges and extra air lines for water movement. I could have likely ran two to three more of either type pools if I wanted.
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