Filter size

[Stevieleigh]

Hello! I've bought a hang on filter for my tank.. it says it's suitable for aquariums up to 120L my tank is 90L.. is that over kill? This is to replace my cheap filter. My tank is fully cycled.
Thanks

 

[WalkingFish]

I don't think it's Overkill at all. In fact I keep axolotls and I use canister filters that are rated for at least a double the amount of water I have. I do this because I have to have a low flow rate but be able to clean up a high amount of waste, so I just add holes to my spray bars.

 

[Stevieleigh]

Ah great, thanks for the reply!