I have a betta fish andi have her in a jug…so I got many questions but main is does she need air pump and a fillter in the jug?

最佳回答：

Betta fish are surface breathers and don't generally need a pump and filter, as long as the container is kept clean. If there is limited surface area at the top of the bottle, you may want to consider putting her in a different container with a wider top.