What is “Flashing” in Koi or Pond Fish?

What is “Flashing” in Koi or Pond Fish? “Flashing” is basically just a fish that is “scratching” itself on the pond / tank bottom, or ornamentation. It USUALLY doesn’t mean anything, unless it’s “more and more common” or it’s happening at least hourly. There are lots of causes of flashing koi illuminated here (click). Just … Read more

Salt Dosing Journal for Ich or White Spot – A Case

Salt is the greatest bath treatment of all time. This would have to be one of the single, uncontested assertions made in this website. Salt is both tonic to fish and toxic to parasite. It’s got a wide spectrum encompassing most of the ciliated protozoans and it can offset the negative effects of some water … Read more

Air Sac Pneumocentesis

Air Sac Pneumocentesis Air Sac Pneumocentesis is an important part of the management of Floater Syndrome wherein a fish becomes inverted and floats helplessly on the surface. Many factors contribute to this condition but the most common denominator is a proportional correlation (relationship) between higher Nitrate levels in the system and higher incidence of “Floater” … Read more

Management of fish “jumpers”

Management of fish “jumpers” When a Koi, goldfish and pond fish decides to end it all and makes the leap to the floor, there are several factors which may dramatically extend it’s survival on the ground until found. If the ambient temperatures are cool the fish will fare better. If the surface is non absorbent … Read more

Overgrown Head Growth, Cap or Wen in Orandas

Overgrown Head Growth, Cap or Wen in Orandas A peculiar disorder of goldfish is the overgrowth of the cap to the extent that the eyes are covered. In most instances, this does not matter to the fish. Blind fish can apprehend food as effectively as the sighted colleagues in the aquarium. However, it is true … Read more

“Come on. What Do I Treat The Fish With?”

How to save your fish almost every time, by adding stuff to the water. The most common approach to fish diseases, is just to put medicine in the water with the fish. I have spent over 20 years trying to get people to be better at the hobby and learn what they are doing, and … Read more

Koi Fish Pond SuperCooling: What Is That?

Koi Fish Pond SuperCooling: What Is That? SuperCooling, Common and Preventable Supercooling – When you want a cup of coffee to lose heat, the fastest way is to pour it through the air from cup-to-cup until it has lost it’s heat.   And in the same way a waterfall and fountain can propel your water through … Read more