dwarf gurami nipping dojo loach

[erc2995]

hello all
today i got 2 golden dojo loaches and they are doing well they are not shy and are already active, already in the tank i had 2 dwarf gurami's and the one keeps going over and pecking at them while they are still, and it usualy goes for the face of loaches, i have a black kuhi loach and a couple guppies that the gourami never bothers.
does my gourami see these loaches as food or could he be trying to establish dominance?
and any idea if this will stop??
i love my new loaches and dont want them hurt and i also really like the gourami

 

[OrangeCones]

What sized tank are these fish in? What are the readings for ammonia, nitrite and nitrate?

 

[erc2995]

its a 20 tall all readings are totally fine

 

[OrangeCones]

The dwarf gourami is likely trying to protect his/her territory. Going for the eyes of a fish is how a fish disables another fish.

Do you know that dojo loaches get 10-12" long?

What readings of ammonia, nitrite and nitrate are 'totally fine'?