I have been writing about other people’s Aquaponics systems, but never my own. The primary reason is, I keep making mistakes, or is this called learning? So, I wanted to share what I have done wrong over the last year in my AP setup. Some of them will sound funny or “stoopid,” but I know someone will learn from them and not make the same mistakes. Top 10 Aquaponic Mistakes Failure to seal the grow bed. I sealed my fish tank plug with super strong, latex aquarium sealer, but I forgot to do the same for the grow bed!