Help! I Witnessed The Strangest Thing.

[NorthEastFisherman]

So im just laying in my bed watching my fish and im watching my gold gourami when all of a sudden he starts making himself go into a vertical position. Then while hes in this position my rainbow shark starts "grooming" his skin like hes cleaning a plant or something. It was the weirdest thing and i dont know if thats normal or if there is something wrong with him. So have you ever seen this happen before or is it just me? Is it normal? I'm so confused.

 

[Gavinfleury29]

well i think it should not be some thing bad i just think its just life for them or maybe the gourami had BO and the shark clened it