To sump or not in a planted tank
Well, I am going to set up my dream tank. A rimless 120cmX60cmX60cm(4'X2'X2') tank and I have been having a terrible time deciding what form of filtration to use.
Looking at the cost of running 2 larger Eheim 2217s on the tank and the double outflows and returns for visable on the side as well as the cleaning to maintaing them and try and hide the green tubes, I started looking at sumps.
That brought me to some reef sites (reefcentral, etc) and looking at Silent and Failsafe Overflow System to run the tank. I am considering doing a "coast to coast" external overflow either on the 6' side or the 2'side depending on the how the tank will be setup with viewable sides (still deciding).
My question is this: what would be the disadvantages of using a sump with an overflow like this on a planted tank. Since it basically skims the water surface and filters that, would it result in more build up of debris on the substrate buttom, and thus problems, or would it work the same way as the canister (though that usual sucks from near the substrate surface)
Co2 loss is not an issue if the flow to the overflow chamber is smooth and not falling (this has been proven by many studies I have read that show that the loss of Co2 is mimimal and most loss of Co2 is due to surface ripples especially in the ruturn not from the sump if used correctly.
anyone using a sump on a planted tank or with experience using a reef setup on a planted tank, please help me decide