Not sure if this is a good idea..... Have read acouple threads about tankmates for rays and have never seen puffers mentioned. Maybe I am wrong but if you like your rays it might not be a good idea. Maybe someone else can prove me wrong...... If so, please do!
No problem! Just hope I'm not steering you wrong.... Can't imagine it working out but that is IMO. They are infamous for nipping fish and as they get larger often do not do well with tankmates at all. Would be sweet if you could pull it off!!!!! May not want to chance it though.
Rays are very peaceful minding their own business at all times so avoid any aggressive and territorial fish I put a small mbu puffer in with some dwarf snakeheads once it was carnage puffer bit the face off of 2 of them I really would not even contemplate putting a puffer in with rays
i have successfully mixed rays and puffers with no issues. i kept a watchful eye at first though, as i had been told that the puffers would go for the rays eyes.