See that hole in the leaf in the last picture? See the white spots on several of the leaves? You haven't even taken it out of the aquarium per our advice?? Sorry, but I am 99% sure you have mites. If you don't solve this problem fast, your buds will be filled with mites and not worth smoking, if your plants even get that far.
yeah there's fucked up leaves showing what looks like russet damage if you look deeper in. sadness.
i'd destroy it all.