Dorsal fin, tail fin and fat fins slightly yellow, pectoral fin, and ventral fin Tunqi gray.

背鳍、脂鳍和尾鳍稍带浅黄色，胸鳍、腹鳍和臀鳍灰白色。

The design is a nod to freshwater knifefish, which can move forward and backward, and hover, by rippling an elongated ventral fin.

Gymnobot的设计灵感来自于一种名为宝刀鱼(knifefish)的淡水鱼，这种鱼利用腹部长长的鱼鳍，在水中可以进退自如，还可以作出水中盘旋等动作。