I quite like mine. The MJ1200 just feels stronger because it's a direct flow and the 620 is dispersed and doesnt really aim in one direction. I thought that the flow with the 620 would be better but the fish seem to get blown around more by the 620 than the MJ1200
jmo
t.b.
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135 gallon reef
corals:kenya tree,colts,blasto,gold toadstool,gps,zoo's,ricordea,elephants ear,rhodactis mushrooms,finger leather. 7 inch squamosa.
Livestock: powderblue tang,scopas tang,sailfin tang, blue tang, longnose hawkfish, coral beauty,2 clown fish,royal gramma,checkerboard wrasse, sixline wrasse.
soon to running 55 gallon refugium.
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