yep should work great and you should see ammonia drop in 24 hours ,at least that's how long my neighbors took .Her grandchildren stay for the summer and she did not know they were feeding the fish 4 or 5 times a day as her hubby was supposed to be watching them ,Still did water changes in her pond because there was a lot of food that was old we had to scoop out .They used up a 3 lb bag of food in a week.Lucky fish are alive .Never saw anything like it in my life .