So looking at the Tunze 6040 and the features look really good. At the moment I'm using 2 WP10s and the flow seems just meh on Else. In a 29 gallon standard with a rock wall of about 30 - 35lbs of rock, would I benefit from just using the Tunze or use all 3? I'm SPS heavy right now, about 18 sps, 2 lps, 2 zoa and 1 RBTA. I can't use the S1 W1 mode because the ato is in the main display area(no sump, hob stuff only) and it causes the float switch to bob up and down. Any recommendations guys?