Hi there guys
This is my first post and I was wondring if you could help me. I have a 125 litre tropical tank. My pump went wrong which was a Fluval U3. My partner went to the store to get me a new one and came back with a Fluval U4. The guy in the shop said that even though it was a pump for a bigger tank (130 - 240 litres) that it was fine (they didnt have a U3).
The pump has been in there a while and i've never been able to get rid of all these little bubbles!. I don't think its hurting the fish. Its just really annoying. Is there any way I can get rid of these bubbles?? Is it because the pump is just to powerful for the tank?
Any advice would be much appreciated.