I figured a canister filter since it has a round top so no hob . A sponge filter would take up too much of the limited internal space . I have no experience with canister filtration and have no idea what to get . I want to not attach the filter since the vase is top heavy so the filter needs to be strong enough to pump from the ground up into the vase . So what should I get ? Also do canister filters need an intake close to the bottom and if so does that mean I need an 8 ' hose to go from the ground , up to the top and then all the way back down to the bottom of the vase ? Bonus What would you stock ? I ' m thinking a betta with several plants along the sides for resting places . <| sep |> shit , just realized that ' s how I started getting involved with TD . Had totally forgot about that epic mess