Garlic and phosphates

[tuck]

I was wondering if anyone out there has noticed phosphates going up when using garlic? I'm using Garlic Gaurd right now, have been for almost a month now. I normally only use it when introducing a new fish into my system. I added a Butterfly, finicky little eater, a couple weeks ago. I soak the frozen food for a couple hours before feeding, drain off the excess garlic then feed. Now I notice phosphates are high. The garlic is the only thing I'm doing different and phosphates have always been low. I'm now using Phosban Pro and changing water every 4 - 5 days but they just don't seem to be coming down. I've checked my freshly made salt water - no phosphates. So now what?