Building codes for aquarium in mechanical room

[sphelps]

I can seal off the mechanical room without any issues, the tank will be sealed air tight to the wall with no access to room except the door. I don't think it has to be that tight though since the requirements for the door do not have to be air tight so the tank shouldn't have to be either but my plan is to have it tight anyway.

I know you're not allowed a cold air return in the mechanical room for CO2 reasons but I do want to put an exhaust vent in the room to control humidity. I'm not sure if that is allowed either and if it is I would assume there will be a limit on the cfm and duty cycle unless it's interlocked with the furnace to replace exhausted air with make up.

Good news so far though, obviously my plan is plausible.