sorry about the death of your frog.

please check out my frog, i've kept ACF for years and some sites do have wrong info (and those are usually created by beginners).

http://aquaticfrogs.tripod.com

i doubt it was the food that killed him.... could be a contributing factor to a rise in bacteria levels in the tank. ALWAYS clean and remove uneated food from the tank. if you dont have "time" to do this....maybe reconsider keeping aquatic life.....

rachel