From Ecotech them selves
"The MP10—ideal for tanks from 2.5 to 50 gallons—creates gentle flows of 200 to 1,575 gallons per hour, helping the tanks feel more like the ocean."
I have a MP-40 on my 90 gallon, and I have that up to 2 lights below full on Random Reef crest mode (yellow). I would recomend at least 1 more 10 if not getting a MP-40.
I woke up at 4am the other night and I had white stuff being shot into the tank by my snails and then white little spheres by other snails. So I can only immagine it was them reproducing.
If it vibrates you need to:
Aligning VorTech Pump
• Turn the speed up to the maximum speed by using the
speed control knob on the driver.
• Plug the power supply into the driver. If vibration or noise is
detected, carefully adjust the propeller housing by moving it
VERY slightly left, right, up or down, until the noise/vibration
is eliminated or minimized as much as possible.
• After alignment has been ensured, turn the speed control
knob to achieve the desired flow rate within your aquarium.
• Important: If the VorTech is not properly aligned, a strong
vibration will be heard. If the alignment is not corrected,
this can cause increased electrical consumption, excessive
wear on the components, excessive heat and excessive
noise.
Also go to :
http://ecotechmarine.com/wp-content/uploads/2010/05/FULLMANUAL_Revision1.1.pdf
That is the manual for the mp-10 READ this bad boy. It will be worth it!!!!!