Take a look at Michael's Caribbean tank. All his filtration is his macro. He doesn't have a very heavy bio load, but it does work. Just be sure to have macros that grow really fast (like caulerpa) because they can uptake nutrients extremely fast
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"I glue animals to rocks"
Current Tank Info: 36 gallon reef, 65 gallon Caribbean Biotope macroalgae and seagrass tank
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