How to Remove Layer of Oil in Betta Fry Container?

Often found in betta fish fry containers or aquarium, there is a layer of oil on the surface of the water. Can this layer of oil be dangerous for the fry? How to get rid of it?
In this video I will give you two ways to easily remove the oil layer on the surface of the water.
Hopefully it's useful for all
#aquarium
#bettafish
#bettafry

[@mrcoco3562]

Wow thank