A normal or typical person who completely nerds out when it comes to aquariums or fishkeeping. Coined by Cory McElroy of Aquarium Co-Op in a live stream on YouTube on 19 October 2020. The term has rapidly spread in usage across the aquarium hobby and is now frequently encountered in a number of aquatic hobby contexts.
Most people wouldnât guess, but Iâm a huge nerm.
You know youâre a nerm when you try to grow green water on purpose.
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