Depending on nutrient export Ping, I may do both a fuge and ATS. I'd gone with a Berlin system for many years, but started to have problems with nutrient buildup. The Hiatt fixed that problem, but maybe too well. May initial idea was a fuge with a denitrifying mud bed and plants to intake excess nitrogen. If there's still an issue with excess nutrients, then I would add a turf scrubber.

After seeing so many beautiful tanks that use refugiums and little else, I can't ignore the call any more. Thanks for the mangrove and cheato offers. I'lupdate and add pics as I get this project rolling.