what type of goby to get

[sun catfish]

i would like a goby for one of my other tanks and if you know of any small fresh water gobies maxing out at 4 inches tell me

 

[SharptoothBass]

i dont know how the lfs are where you are from but the only gobys we really get are bumble bee goby knight goby and peacock goby i like the peacock gobys. i just breed my purple spot goby very nice fish with lots of personality but the get up to 6 inches