I'd do 2-3 pumps with a return for each that way they aren't fighting each other and if one goes down you're not immediately screwed I'd also do submersible pump because any heat will go into the water and the water will help silence the pump
This is true. You could also put multiple returns off of 1 pump too. With the gph you are looking for you could have 4 returns putting out around 1000 gph each or more with a manifold. Basically you have a bigger pipe like on a pump designed with that much gph it's probably going to be 1.5" take that to a horizantal run with as many "T's" as you want returns or feeds and cap the end of the 1.5" pipe off. The "T's" you'll want smaller diameter feeds like say 3/4" to keep pressure up. You put ball valves in at the "manifold" to shut off flow to a certain area or whatever if needed without killing flow for everything. As I stated earlier I had salt tanks in 2 different rooms and a breeding rack in the sump room and 2 300g stock tanks, sump, refugium, skimmer, dsb, settling chamber, bio pellet reactor, if it wasn't gravity fed or didn't have its own pump it ran off a manifold from a larger pump.the other reason for multiple pumps would be you could have multiple returns in different areas of the tank
Black Friday deals or local?Btw I’m probably going to pick up a 55 or a 75 today depending on if the person with the 75 get back to me. If not I’ll take a full 55 set up for $50 haha