Quote Originally Posted by Mentat View Post
Hi Eli! Well, there are many arguments about how to go around with filters; so will tell you what I would do, and then when others tell you different... just don't be surprised. BTW; there are many Whisper filter models so will presume you have one with space for 2 pads and that those pads are 2 layers of bonded fiber with a small amount of carbon sandwiched in between.

The easiest for you (but costlier) is to use 2 pads and alternate changing only one at a time when flow slows down.

Second thing you can do is to extend the life of pads and prevent clogging by directing water stream from siphon hose exit into pad during a water change. I use finger pressure to squeeze tube end and get a strong flow that will flush all dirt off pad into the draining bucket.

Third thing you can do is to see if can somewhat safely, open the cartridge and replace those pads and carbon with blue bonded filter pad material. I've used those bonded pads over a year, before they fall apart in a high flow filter rinsing weekly with no problems.

Myself do not use carbon unless water it is discolored, or need to remove a medication; and then run it only for 24-48 hours and discard it. The other media I use is Seachem's Pond Matrix in a velcro sealed bag and that also get's rinsed in tank water every week.

Hope this helps a bit and good luck !
I have the tetra whisper EX 20. I'm not sure if there is enough room to put in two filters, but I can see. Right now there is only one filter and I'm in the process of tank cycling. My ammonia dropped to 0ppm so I added more. I also added Seachem Prime, which is supposed to make the ammonia more digestible for my filter.

So from what I've gathered is that avoid replacing the filter pad entirely and rinse it off with siphoned water (presumably during a water change?).
But when I rinse the water on to the filter pad, would that be enough to season the filter? Or should I leave the old filter in the water for a few days?

Also, to be clear, your third suggestion is to open up the pad and replace it with the material you suggested? If I am getting the right idea, do I replace everything and just leave the case of the filter?

My biggest concern is that the tank is cycling now, but wouldn't having a new filter pad destroy the whole process? Apparently the filter I have now has a seperate biofilter, so maybe not?

Also what exactly is Seachem's pond matrix?