Well this guy has done it successfully.... http://en.microcosmaquariumexplorer.com/wiki/Breeding_the_Green_Mandarin
Gobies are egg layers.
round gobies have 2 kinds of male
Gobies are small freshwater fish, so, lakes and rivers.
They PUFF UP !
You can say "让我们睡觉" (ràng wǒmen shuìjiào) in Mandarin, which translates to "let's sleep".
you should kill Round Gobies because they are invasive and it would help if you kill them i guess.
Hiding
they speak Mandarin, Cantonese,etc. they play and eat and sleep
catching it and killing it.
but
Neon gobies exhibit symbiotic behavior is known to be jumpy. The behavior can go from one thing to another.