thankyou, i will do that, change 1 spong 1 day and the other 1 another day ,thanks for your help,im learning
Erm, not exactly LOL - what I meant was, let's say you end up having to clean your filter sponge once every 3 weeks (just suppose), so the first time you do it, just clean one sponge (you don't ever replace these sponges with new sponges as they should last for years, only when they fall apart should you put a new one in with a part of the old one). Then 3 weeks later when it's due another clean, do a different sponge etc
My filter sponges only need cleaning about once a month, but everyone's circumstances are different. Like I said, don't clean it out just for the sake of it, clean it when it needs it, when you notice a drop in the water output flow.
Also, not sure if you realised it but your filter has optional water output flows (top/middle/bottom). It should explain it fully on the booklet that came with it. It's also fully adjustable so that you can reduce the rate of flow (e.g. if it's too turbulant).
Some fish like fast moving, noisy water, others prefer quiet, trickling waters.
Oh I noticed you said your tank was cycled (you took a water sample to be checked at your LFS) - but what method of cycling did you do? It's just that if your tank hasn't been cycled correctly, you might find problems ahead with your fish getting sick or even deaths.