the Mag 7 is small and it fits in my sump right next too the skimmer. You can cut the hose on the skimmer so it goes straight down so the pump can sit right next to it.
the mag is about the same size as the CA
. I would run the CA
until it becomes a problem, just keep a eye on it when the power goes out, you may need to wiggle it to get it started again. Keep the suction cups from the CA
because they fit in the hole on the bottom of the Mag 7 which come with none.
AETech is a local business for me so I have stopped in and talked to them about the skimmer. They sell the Mag 7 as a upgrade for the reef devil.
in a 55 IMO
is a lot, I am not big on flow in the tank. IMO
unless you have lots os SPS
your flow can be lower. I have no PH
in my 125 and I get great flow through the tank with just the return pump. I have the Sen 900 Ted so I can have 2 hang on return lines at each end of the tank. I have a Via aqua 3600 on my 55 with a single return line hung in the middle and I get lots of flow.
In nature there are dead spots for fish and corals to rest and grow.
Don't take me wrong, flow is not a bad thing, but IMO
you don't need as much as some say.
Yes you can keep the same return pump. You are not changing the overflow at all right? The flow rate is not changed by adding a skimmer. Its all contained in the sump, you suck water from the sump and it goes through the skimmer and the discharges out back into the sump. Sucking water from the same chamber that you discharge into is fine.