another whitespot/carbon filter question

[k8bailey]

Right had a very good look at the box the filter cartridge came in and they don't have any carbon in them. So is ok to leave the cartridge in the filter with the filter switched on when using interpets whitespot treatment?

Is there anything else I can do to get rid of this whitespot?

All fish look very bad now, covered in spots torn and bloodied tails/fins, missing scales from rubbing against ornaments etc.
They're still feeding well but spend a fair bit of time sat on the bottom of the tank, this has been going on for well over a week now.

We've been doing regular water changes and adding aquiurim salts and the de-chlorinator stuff to the fresh water.

Please I hate watching them all suffer like this, coz fish have feelings too y'know!

[clomin]

I used to keep fish many years ago and used to treat them with askit i put them idividually in an ice cream tub with enough water to cover them with a pinch of askit, never failed me yet, if you dont want to try this take out ornament
dont do so many water changes to give chemicals time to work let me know how you get on