I tried 2 maxi mods in my 90gal. 24'' heigh, all softies and fine sand. it was too much flow for my corals and kicked up a sandstorm no matter where I placed the powerheads. I think if I had sps and coarse sand it might work. I hate to see you put out all that money for 2 sets of mods with brackets and magnets and find you can't use them. I you want,I'll sell you 2 eco-mods for $15.00 shipped, these don't come with the brackets or magnets, just 2 props and 2 shrouds. I made my own home-made mounts out of plexi-glass,I have two sets one longer than the other.I will include them if you want.this way you can see if they work for you without putting out all that cash. if interested, email for pics,
fatboyjoe2@msn.com