I just read through post after post trying to find an answer to aquarium size for a corn. I didn't find too many answers because they usually ended in cohabitation warnings! I house my corn in a 20L. I am not sure how big he is, never really bothered to measure, but hes only about 2 years old. Probably around 3 feet if I had to guess. But how big of an aquarium should be used for a full sized adult corn? Will he be ok in a 20L through his whole life, or do I need to start looking for a bigger cage?




