The Green Fish was seen entering the Salty Spitoon. He had multiple tattoos, and SpongeBob pretended to be one of the tattoos.
The Orange Fish got into a fight with the Purple Fish and was allowed to go in.
The Purple Fish got into a fight with the Orange Fish. He then entered the Salty Spitoon.
The Brown Fish was first in line, and was allowed in. As he had a bowl of nails for breakfast, without any milk.
Reg asked if the Scaly Fish was bothering SpongeBob, just before the fake fight with Patrick.