Had the same problem when i set up - replaced the skimmer with a tunze 9002 and homemake media rack, added the optional suface skimmer (works great), shut off one of return power heads (most of my lsp didnt like to higher flow with both going) and put in a Koralia powerhead #2 by the suface skimmer to move the water along the back wall - no microbubbles - It has more than enough flow for what i have in my tank
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