fluval u3

  1. N

    Fluval U3 Filter: Impeller Rattle

    Hey Guys, This is my first post! I have a new tank set up, it has been running about 6 months. 125L, with a Fluval U3 Filter. However recently the filter stopped working after a water change. So I took it all apart to give it a good clean. I took off the bottom section and cleaned the...
  2. K

    Fluval filter for tropical fish?!?!

    Hi guys. It’s just a query really, we have a 160L tank for our tropical fish & currently have a fluval u3 filter in place. We have 24 small tropical fish in there at the mo. We were thinking of swapping it for a fluval u4 filter, although we’re worried it may be too strong for our guppies. Any...
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