Does anybody listens sounds from their fish tanks at night?

this is VERY unusual, no fish owner that i know hear things at night from their aquariums. anyways i hear like weird noises like a huge bubble popping, and lots of bumps as well, sometimes it sounds like a frog just jumped in my tank from 10 feet above the surface making a huge splash, i do have nocturnal fish like senegal bichir, and pictus catfish, but all they do is swim thats it, theres also a 6" common pleco, does anybody have these noises at night? while in my 20 gallon tank which also has a pleco and is in my room no noise comes from it. Im pretty 100% sure the sounds come from the 55 gallon tank because right now the lights are turned off and im using my pc right near the tank but without lights disturbing them, and whenever i come check the fishes are sleeping o.o