1. C

    Oase Filtosmart 100 blowing air?

    Hi all, New member here looking for some advice. I have a 25L nano and last weekend swapped out an older canister filter for a new Oase Filtosmart 100 with the built-in heater (mainly because I wanted the heater out of the aquarium). Since it's been up and running, it frequently pumps out a...
  2. RolyMo

    Nano or Sponge Filter

    Hi Guys & Gals I am a couple of months into my new shrimp tank which is populated with plants and CRS and all doing well. The nano tank I got came with a Dennerle nano filter which has worked well to date. It silently ripples the water surface in my low tech tank. Oxygen is supplied by a...