how to silence my stealth grow room

I just built a stealth grow cabinet 7x5x3 ive got my light sealed off, built a box insulated with carpet for my loud a** air pump but I can still here the bubble bubble plop from my 3 DWC buckets. Ive built individual box's insulated with carpet (no top to box) that my 5 gallon buckets sit in. Any advice besides insulating the entire cabinet with carpet? Has anyone tried the egg carton junk or foam? Havn't moved my plants in yet since its still under construction. Thanks in advance for any response's!

do you have any pics?

Not worried about reservoir temps with all the dead air trapped around them now?

These were takin before I got my carpet in the box's the DWC buckets go in and before my air pump box was built.

No Ive got two fans that are blowing on the plants and 4 120mm exhaust fans in the back/top Ive also got an air chiller I can put in there if needed but right now they are in a closet roughly the same size with less air flow and they are doing great so far.

And yes im using CFL lights, I had a 1000w mh and hps light and ended up selling it and going back to my CFL's. They produce enough for me since its only for personal and you can't beat the extremely low temperatures they emit