So I just bought a betta but the filter that I have is quite strong and I noticed the fish is getting pushed around quite a bit (itās one of those ones where thereās a little waterfall going into the tank) so I put a little sponge in the outflow but so the flow is slowed a bit and ran to the store and grabbed a sponge filter thatās more suitable for a betta. I donāt want to mess up the water of my tank though I am new to fish keeping but Iāve heard replacing a filter can mess up the water cycle? Iām not sure if Iām wording that right but any advice would be great, I havenāt put the sponge filter in yet