Can I Have 2 gobies in a 20 gallon tank?

Hugo Garcia · Oct 21, 2017

Hey guys, how is it going? I’m here to ask if it’s ok to have 2 gobies in a 20 gallon tank. On my tank I have 2 very small Clown fish, 6 hermit crabs and a Organge Spot Prasn Goby. I would like to know if it is ok to add a Yellow Watchman goby to the tank? Would they be ok together?

Thanks

Ludders · Oct 21, 2017

I would say no in this case, the yellow watchman ideally needs more space and might get territorial in a small 20g and fight with your orange spot prawn goby.

Ludders · Oct 21, 2017

How about a yellow coral goby instead?

Here's my little fellow.

XNavyDiver · Oct 21, 2017

I have a couple these. They're like little puppy dogs that follow you around the tank wagging their tails hopping from rock to rock. They park themselves in odd positions and don't occupy the bottom of the tank like a lot of sand dwelling gobies.

eatbreakfast · Oct 21, 2017

Actually, I have found that watchman gobies are pretty tolerant of each other. They will each gravitate to opposite sides of the rockwork.

ATLD99 · Dec 10, 2017

XNavyDiver said:
I have a couple these. They're like little puppy dogs that follow you around the tank wagging their tails hopping from rock to rock. They park themselves in odd positions and don't occupy the bottom of the tank like a lot of sand dwelling gobies.

What kind of clown goby is this?

XNavyDiver · Dec 10, 2017

ATLD99 said:
What kind of clown goby is this?

It's a Citron Goby.

Rip Van Winkle · Dec 11, 2017

You can try it but monitor them. If the Yellow Watchman is the last added to the tank then that's more ideal. If you're going to add a YWG then you should also consider a pistol shrimp. They really do much better with their partner shrimp. I'm assuming you have a substrate / sand in the bottom? This is a fish that normally lives on/in a sand substrate and will dive into it's sand hole when it feels in danger. It's also a jumper. You'll need a screen or top of some kind.
If you see the YWG chasing the other goby, it won't work. So you'll have to re-home either one of the fish. I suggest being prepared for that eventuality if you go ahead with tying it in your tank.