I’ve been successfully running my first mixed reef in a 40 cube for 9 months or so. Recently bought a used waterbox 6025 and started a cycle. They are 3 feet apart. I saw a comment on here a while back about running water between the old tank and new tank with low flow. Anyone have any thoughts on the pro/con with plumbing in 2 sicce micro pumps to combine the water in those tanks after the cycle is complete? I do not want to crash my 40.