Adding another goby?

[Jim the noob]

Hey, could use you guys experience here.
In my tank i have a pistol shrimp/yellow watchman goby team. They have been together for over a year now.

But im curious, would adding more goby or gobies affect that "freindship"?
I knpw that every time something is added it changes the balance in general. I only mean if those 2 will stay together for life, or just until something better comes along.

 

[Cthulukelele]

Hey, could use you guys experience here.
In my tank i have a pistol shrimp/yellow watchman goby team. They have been together for over a year now.

But im curious, would adding more goby or gobies affect that "freindship"?
I knpw that every time something is added it changes the balance in general. I only mean if those 2 will stay together for life, or just until something better comes along.

How big is your tank? Not all gobies are shrimp gobies, but most gobies hate each other. They can be kept together in larger tanks

 

[Jim the noob]

ah didnt even consider that not all of them paired up with shrimps.. i was thinking diamond goby mostly cause my watchman cant keep that sand clean, so wanted to give it some help.. but not if it could ruin the freindship