I got this little blue goby from petco (5 for $5 on some tropical fish). Must have been a stowaway. They didn't know what it was and I have no knowledge on any gobies so they threw him in and wanted to know what it was when I found out. Anyway I did some research and found they're from fast moving waters so he'll be getting a 20 long stream tank with some other gobies like him. But lesson here is if you lose one check your filter lol. I looked all over and didn't see him on the floor. I was bummed and 2 days later I cleaned my 75 gallon HOB filter for my 30 long because it was slowing down and what do you know he's in the in the filter. He can't get in the intake so I narrowed it down to he climbed up the side of the intake and somehow got over the lip of where the water flows out and made it into the back. It's not a straight path into the filter he had to do some acrobats.
