If you haven’t switched yet, check out aquarium co-op’s selection of Sponge filters. I just got one, and now I have a sponge, HOB, and Canister. I like all 3 for different reasons though.
Betta sorority in a 15G rimless and planted
Laetacara Arguaiae(pair) in a planted 20G with 5 Astyanax xavante