A Chance to Really Shine for Pondless Pundits

Know It Alls and Know It Aren’ts

Some people know it all, and they’re happy to let you know it. At least they can be useful because sometimes they offer solutions to current problems, they ‘do the work’ and find stuff out, even research things and take valuable information from their actual experience.

Then, there are the “Know It Aren’ts” who pretty much know stuff that’s wrong. Their time is spent finding out where people / ideas are wrong and pointing it out. Because knowing that something isn’t true is “smart” even if you don’t know the truth of it. And so they go around beating drums like “This guy’s wrong about this.” “This is a myth” and “You have it all wrong.”

So I made a list of things that both groups can work on with their giant, comprehensive minds.

Leave off figuring out who’s wrong about what, and criticizing people doing the work, and solve some problems for us. Here is where the mega-mind of fish health needs to shine:

  1. What is the exact ‘kill list’ of ciliate protozoan parasites of metronidazole in warmwater water re-use systems?
  2. To remain or get into the water column does the compound need to be solublized?
  3. What species of fish that may exist in a pond environment would be adversely affected by metronidazole.
  4. Can metronidazole be obtained in quantities sufficient to treat a pond for ciliates?
  5. Why would Formalin and salt be toxic in some water, but not in other water?
  6. What is the salt-threshold that would be toxic to Koi and goldfish with 25ppm formalin?
  7. Does garlic really kill snails? What species does it spare?
  8. Does garlic kill freshwater clams?
  9. Can formalin be effective in the treatment of Aeromonas / Pseudomonas Ulcer Disease in Koi?
  10. Are autogenous vaccines against common pathogens like A. Salmonicida possible (cost notwithstanding) in Koi?
  11. What exactly kills fish when a pond freezes over without a hole in the ice? How would noxious gases accumulate without psychrophiles to produce it?
  12. Is there a conversion-factor for the rings in a fishes scales linking the number to their age? Are the rings of a fishes’ scales even representative of the age of the fish?
  13. Why are Koi x Comet hybrids “sterile” even while having intact-looking male and female gonads?
  14. Can hydrogen peroxide be used safely for ciliate parasites?
  15. What is the environmental impact of hydrogen peroxide at therapeutic and high-end therapeutic doses?
  16. What is the actual residence time of hydrogen peroxide in water reuse systems? Is it temperature dependent?
  17. Can a fish live in any dilution / solution of Chlorhexidine strong enough to kill pathogens at least ON the fishes’ surfaces? If so, for how long? How often?

This is just a start for our “Know it alls” to finally have a purpose that benefits the hobby.

If you know or find the answers to any of the above, you are smarter than me and get a trophy. Please reach out to the site by fax at 770 973 0301

If you KNOW a know it all who likes a challenged or likes to BE challenged, please ask them any of these questions and let’s see how gracefully they say “I don’t know.”

PS I don’t know the answers either. This is where actual work is needed and I ain’t gonna do it. Nobody really appreciates it, and all you get for it is criticism.


Author: Dr. Erik Johnson
Dr. Erik Johnson is the author of several texts on companion animal and fish health. Johnson Veterinary Services has been operating in Marietta, GA since 1996. Dr Johnson graduated from the University of Georgia College of Veterinary Medicine in 1991. Dr Johnson has lived in Marietta Georgia since 1976.