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I noticed my corys were looking pale and inactive today..didnt wanna feed either..so I did a water test and found that the ammonia level was high.Dont know why either did a water change and filter rinse a few days ago as normal and then a water test ..all was good.
What do I do now before they start dieing?

Big water changes to reduce the level of ammonia. What is the actual level?

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Mats

And how did you rinse the filter?

According to the king british test strip 6.0 NH3/NH+4 mg/l..dark green = danger..I rinse the filter sponge etc in the water I've removed during a tank change.But from now on Im gonna alternate the filters not do both @ once.They are sera internal filters so the tank has a low flow of water but atleast water does get circulated..the tank is heavily planted and also has an airator.

In the meantime I've done another water change to dilute the problem atleast.

You need to pretty much continue making 50% water changes until the ammonia is below 0.5 ppm - preferrably 0.25 ppm. Make sure you don't drop the temperature too much with the water changes.

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Mats

Ok thnxu