The tag alias #81792 marine -> aquatic has been approved.
Reason: A continuation of this BUR resulting from this suggestion by Cloudpie. In essence, marine refers to saltwater species and is inappropriate for freshwater species. Aquatic covers both as it's frequently impossible to tell which is applicable in a picture and through the power of imagination, both freshwater and saltwater species could happily coexist together anyway.
A normal alias request like this has an advantage of the otherwise more versatile BUR in that we don't have to unalias and unimply things for a tag before aliasing and implying them to another tag.
Tags about specific marine creatures, such as marine_mammal, marine_taur, and marine_humanoid may need to also be converted to aquatic equivalents.
EDIT: The tag alias marine -> aquatic (forum #480587) has been approved by @furrypickle.
Updated by auto moderator