Here's the mystery fish that I have in my 20g. The pics are a little blurry.
So a bit of backstory to him that may be able to help.
I know I shouldn't add a fish to an aquarium without doing the proper amount of research beforehand, knowing that I added it anyway. This little guy is from the gulf of mexico and was hauled up with some live rock that I got from a friend. We were looking through the rock for Tigrigobius Macrodon (Tiger Goby) that I like to keep in my 20g. He was with them. When given to me he was a bit worse for wear and had little to no coloration. He was an inch long, smaller than my two largest goby.
I added him in March. Just by looking at him I thought he was a blenny which prompted the reasoning for adding him. Both his dorsal fin and I guess his second dorsal fin near his tail are really long and it makes his body look like it's either one long dorsal fin or two long dorsal fins. He disappeared within hours of adding him to my tank and I've seen him once or twice since adding him until Sunday, where he was out and about for a majority of the day. Though I add pellets and frozen I've never seen him eat. He's grown to about an inch and a half. Still about the same size as my larger Tiger Goby.
My initial thought was a saddled blenny, but getting a good look I think he may be a species of Triple Fin Blenny. My friend thought he may be a lizard fish, but his snout isnt particularly long even with his mouth open he doesnt seem to have any small teeth. He's not aggressive to his companions as he's been seen right next to smaller goby with no issues.


So a bit of backstory to him that may be able to help.
I know I shouldn't add a fish to an aquarium without doing the proper amount of research beforehand, knowing that I added it anyway. This little guy is from the gulf of mexico and was hauled up with some live rock that I got from a friend. We were looking through the rock for Tigrigobius Macrodon (Tiger Goby) that I like to keep in my 20g. He was with them. When given to me he was a bit worse for wear and had little to no coloration. He was an inch long, smaller than my two largest goby.
I added him in March. Just by looking at him I thought he was a blenny which prompted the reasoning for adding him. Both his dorsal fin and I guess his second dorsal fin near his tail are really long and it makes his body look like it's either one long dorsal fin or two long dorsal fins. He disappeared within hours of adding him to my tank and I've seen him once or twice since adding him until Sunday, where he was out and about for a majority of the day. Though I add pellets and frozen I've never seen him eat. He's grown to about an inch and a half. Still about the same size as my larger Tiger Goby.
My initial thought was a saddled blenny, but getting a good look I think he may be a species of Triple Fin Blenny. My friend thought he may be a lizard fish, but his snout isnt particularly long even with his mouth open he doesnt seem to have any small teeth. He's not aggressive to his companions as he's been seen right next to smaller goby with no issues.


