Wavemakers actually work really well in mbuna tanks to help simulate the wave-washed, upper rocky habitats. My mbuna love swimming in the current and playing in the flow from the powerheads. It also helps greatly in keeping the sand clean in my tank.that should be enough gph..lol and with the wavemaker..in the rift lakes there isn't that much current.. and from what I've seen mbuna doesn't like it that much
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