Filter too strong?

[LouieTheAxolotl]

I moved my axie up to his 20 gallon tank since he's growing a lot. I put his old sponge filter in but I also had an extra filter from when the 20 was a tropical fish tank. I want to use that as well since the sponge filter doesn't do much to keep the water clear of debris/keeping the water clear. I put an extra sponge by the outflow and it brought the flow waaay down.
But I'm seeing as my axie sits near the filter his gills are getting blown around a bit too much for my liking.


Any suggestions on how to slow the flow even more?

 

[Hayleyy]

Get some slate and arrange them so they sit under the outflow (if it sits high you can prop it up on a ceramic pot).
My axolotl likes to sit at the chiller output where the flow is the highest :/