plumbing sizing

So, I'm at a bit of a stump here on how to plumb this. I have 2 tanks hooked up to the same sump a 20 and 90. I'm trying to install a reefmat 500 on the system and want both outlets going through it... pics are below but what can I do to combine these 2 pipes together to the reefmat mat. Should...

I'm starting to plan to build my next tank... Given the following: A) COR 20 with it's .75" output, with its output upsized using the included 1.25" Union B) a UV that has 2" inputs and outputs C) 1" Neptune flow meters D) a tank that has 25mm return lines (20mm ID) My plan is to run 1.25"...

I am so close to finishing the build of my 60g cube. I wanted to dip my toes in the sump and plumbing area, just for fun. I think I made the mistake of doing a 1/2” return line, figured with not doing more than 400gph max, I would get away with it. Well, after doing a test on my pump I got, it...

I recently purchased a Cade 1200 S2/P from AlgeaBarn. I really like the larger width on the Cade peninsula tanks and decided to go with them vs the more expensive custom route. Im removing the stock sump and plumbing and fitting it with a DIY 60 gallon breeder and roller mat placed in my...