Yes you can deep fry Mrs Paul's fish fillets and any other fish fillets and they will turn out just fine.
To deep fry the Mrs Paul's Fish Fillets you need to get the deep fryer cooking oil up to temperature which is 350 F degrees.
Once the cooking oil is up to the temperature of 350 F degrees then you can place the Mrs Paul's Fish Fillets in the deep fryer and then cook them for around 5 minutes or until they are done enough for you.
Having the cooking oil temperature correct is critical to ensure proper browning and thorough cooking of the fish fillets.
If you need to cook some more fish fillets you should make sure the cooking oil is back up to temperature before cooking another batch of the Mrs Paul's Fish Fillets.