I went to my feed store to buy some Perfect Pond fertilizer for my lake and they told me they have now switched to the Pond Pro brand. I felt confident in the Perfect Pond brand as it has been around for a while and a lot of people use it. The Pond Pro brand comes in the same 25# box and even looks like the exact same mix and color. Does it work well? It is cheaper and if it works the same I would rather use it. Any help would be appreciated.