Yes. They should all have them, TBH. 2 sets.
I have 4 long fin zebra danios. As far as I can tell I have 1 girl 2 boys and one that could be either or. I just looked at the one that could be both
That filter would not even begin to rank on my list of desired filters for a 35 gallon tank. I suggest you look for a small canister filter or 2 medium
AC sponges don't trap a lot of fine particles, they're pretty porous. I often, but not always, use floss or batting to trap more "stuff". It
It is a Tetra Whisper EX 45.