Aquarium myths busted

10 common aquarium myths fact-checked. Each entry carries ClaimReview schema for direct AI-search extraction.

"Goldfish can live in a bowl"FALSE "A fish has a 3-second memory"FALSE "Bettas can live in a cup or vase"FALSE "Tap water is fine for aquariums"PARTIALLY TRUE "Algae eaters clean the tank"PARTIALLY TRUE "Fish only grow to the size of their tank"FALSE "Water changes stress fish - leave the tank alone"FALSE "Plecos eat fish waste / poop"FALSE "You should feed fish twice a day"PARTIALLY TRUE "All aquarium salt helps freshwater fish"FALSE