Again I think with the integrated skimmer the point would be that the skimmer and filtration can be handled (as well as heater) in the HOB
fuge. Thats all I have in my sump other than a clutter of plumbing and return pump, which I would not need. Dosing would be a challenge, but with being able to pull out the sump, I can prolly just stick a pump on a timer in a 5G bucket for dosing. My sump now only serves as a home for heater skimmer and PhosBan 'reactor' and a square of filter media. The more I think about all the free space under my tank when this is done, the more I like it. I am concerned about dosing, thats about it.