Tool? What you mean like a hammer or screwdriver? Wierd!
Ok, I'll knock off the 'cloudy' comment (although its easy to show a pic of a tank without cloudy water) but how about the way he has rammed every inch of tank with fish, making it WAY to over crowded, or the fact he has numerous types of unsuitable tank mates?
If this was a first timer asking for advice, then yes, I could understand making these mistakes, and would advise him to thin out his stock by half, and have a damn good look at the compatibility of his tank.
However this guy says he has 20 years 'experiance' making these mistakes unforgiveable