Answer :
Answer:
if I am reading this correctly it would be Commensalism or parasitism
read what I put below for more information also ch.at noir? much approved I don't know if I saw it clearly since I only got a quick look at it
Explanation:
Commensalism means when one species (the bacteria) is benefited which the other (the fish) is neither helped nor harmed
However if it is both being helped it would be Symbiosis because both parties are being benefited by the interaction
if it is only one party being helped in this interaction and the other party is being harmed this is called parasitism