2 goldfish, 2 neon tetras, 2 algae eaters, 2 floor cleaners, 1 window cleaner in 60l?

I have the fish mentioned above in my 60-liter aquarium. Is that too many? It seems to me that the neon tetras don't feel particularly comfortable with the goldfish, as the goldfish can be quite aggressive and have already eaten the young, including adult guppies. Request for answers Best regards, Susan