Here is my new sponge for when this becomes a shrimp tank:
What kind of shrimp are you going to have?
Red Cherry Shrimp. BTW, welcome to fishlore. Also some Bamboo shrimp and some orange variety of Neocaridina.
Great sponge filters, here is a link to another thread where we were discussing that particular sponge filter... https://www.fishlore.com/fishforum/filters-filtration/174746-how-do-i-set-up-bio-sponge-filter-fry.html#post1844829 I posted some tips for cleaning on one of the posts at the end there.
They're good shrimp or fry filters, I have a couple in my fry tank. Btw if you keep cherry shrimp with an orange neocaridina species they will interbreed & you'll end up with rather drab colours.
That's fine--- I like having some different colors. Even if they are drab.