also, on some of the hobs, i have a sponge prefilter on the intake. for those, i just rinse the sponge monthly. haven't ever rinsed the cartridges in those yet.
Nice, I had not seen that write-up before. Now I just need to dump out my old carbon and rinse the bag and it should be good to go. I just wish I could get my nitrites down below .25... I really want to get those cory's
