| The rattling on start up is something I am worried about as well with a Wavemaker and Maxijets. However, from observing my tank, it seems like the rattling is mostly from snails that likes to hangout on the Maxijet more than the Maxijet them selves.
I am using a Red Sea Wavemaker with 2 MJ1200 and 1 MJ900 all completely stock. I can try the Maximod if you guys want. I do have one kit laying around that I have not used yet(Due to a lack of a need for more flow). | 
