I agree, remove and clean the decor in a 50% Potassium Permanganate soultion. Do a large 75% water change and deep grave vacuming. Treat the tank with Jungle parasite clear, following dosage and duration instructions on the package. Remember to remove carbon if used and always wate at least 30 mins after adding declor to the tank before adding meds.
Now for the Pearsei. The fish should be treated in a bath using a hospital tank or container of your choice. Fill the container with tank water, dose with Methylene blue at 1 teaspoon per five gallons of water (this is double in tank dosage), add 1 teaspoon per gallon of aquarium salt. Bath fish for 30 mins a day for five days while treating the main tank as discribed above. Treat the anchor worm first and then we'll go after anything else that may be wrong you can't bombard the fish with too much at once. The para gard does have Metro in it so that's a plus.
Now for the Pearsei. The fish should be treated in a bath using a hospital tank or container of your choice. Fill the container with tank water, dose with Methylene blue at 1 teaspoon per five gallons of water (this is double in tank dosage), add 1 teaspoon per gallon of aquarium salt. Bath fish for 30 mins a day for five days while treating the main tank as discribed above. Treat the anchor worm first and then we'll go after anything else that may be wrong you can't bombard the fish with too much at once. The para gard does have Metro in it so that's a plus.