Have you ever inspected your tank after regular business hours (meaning at night or early morning) and found your previously perfectly healthy betta looking quite deadleaning up against a decoration, or laying motionless on the bottom of the tank? Or
Betta Fish Laying on Bottom of Tank or on Side: Is It Normal?
Betta Might Have SBD? Can Dead Algae Be Hurting Him?
My betta sleeps like he's dead : r/bettafish
Betta Laying At Bottom Of Tank, Not Eating, Pale, Barely Breathing
Betta Fish Vertical Death Hang: Top 4 Causes & Remedies
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Betta Fish Laying on Bottom of Tank or on Side: Is It Normal?
Dead My Aquarium Club
Swim Bladder Disease: Is Your Fish Swimming Upside Down? - PetHelpful
Recognizing the Twilight Dance: Understanding Betta Fish Behavior Before Death, by Betta Buddy
Why is my beta acting so weird? He will snuggle up with that plant and sit there for what seems like 5 mins at a time. It's almost like he's acting dead.
My Betta Fish Died Suddenly
Betta Fish Laying On Bottom Of Tank -12 Reasons Why (And How To Fix It!) - AquariumStoreDepot
3 Ways to Tell if Your Fish Is Dead - wikiHow