Mud skipper with green spotted puffer?

[Fat Homer]

The only option if ur set on a puffer is amazon puffers as they will tolerate tankamtes. Some won’t. Can slowly increase the water salinity slowly and acclimate. Not sure how they’d handle any salt and tankamtes. Maybe Fat Homer might lend some advice and info.

Sadly they are full fresh... so probably wont tollerate salt too well... and if OP is off o college, the potential need for teeth trimming could cause the parents some extra headaches as well...