WOW, i cant beleive the difference, i just got back from the store 2 minutes ago and hooked it up, and you can barely hear the rio, i think i can hear my maxijets over the rio, maybe i should put the remaining on the MJ's. I just came on to thank you, and recommend that everybody goes and gets this tubing, best $2.50 ive spent in a long time. For reference it is Silicon Air Line Tubing made by topfin found in PetSmart. Thanks Again Rocket.