Don’t focus on diagnosing fish diseases but rather focus on taking proper care of your pond fish.
Hi Mike: You have such a nice website, I have enjoyed reading your advice. I have a rather large outdoor pond, it has a waterfall, filtration system, etc. My pond goldfish and koi are healthy, all alive with personalities to boot. I keep on learning how to best care for them. Its cold now so they are at the bottom in their semi-hibernation state. ..I’m not feeding them at this time. In spring and fall I clean my pond, taking the fish out getting in the pond scrubbing the river rocks, the whole process. Here is my question. My pond water is clear, very clear. I use a natural biodegradable product to keep algae at bay.I have pond plants also. I have beautiful multi-colored river rock scattered in the depths and surrounding sides of the pond (as well as gravel) but I hate that all my rocks look “green” the pretty multicolors of the river rock do not show as they are all coated with a green debris type material. I devised a long pole with a sponge on the end (can you recommend something better ?Lol!) and if I lightly touch the rocks a fine mist of debris arises from them , then lightly settles back on the rocks. This isn’t a hard algae on the rock that would need a good scrubbing to remove, its more a fine mist of debris. What could be wrong and what do you suggest? Also, if ever, I would love to hear you blog on pond cleaning, your method and how often. I enjoy your website very much. Thank You! Susan
Bad bacteria are usually dormant until something happens which activates them. An example of this would be a fish that becomes injured or stressed. Once the fish’s immune system deteriorates, the bacteria will take advantage of it and reproduce rapidly, which leads to sickness and additional problems. Many pond owners are also careless at times. They introduce new fish or plants into the pond without taking the time to quarantine them to ensure that they don’t have any harmful bacteria. Becoming familiar with some of the most common bacteria and taking precautions to protect them is the wisest course of action.
How to care for koi & goldfish and other pond fish in winter
Taking Care of Goldfish in a Pond - Pets
Provide essential electrolytes fish need to survive with an all-natural salt, made from evaporated sea water. Improves gill function, protects against nitrite toxicity & reduces stress by helping to maintain a natural balance of electrolytes in the body fluids of pond fish. Can safely be used with all PondCare water conditioners, filtration materials, medications & fish foods.The great thing about keeping Koi is that they can and will develop personalities which makes them great pets. This fish lives for a very long time with a life span of 20 years or more if cared for properly. Proper care means providing large enough volumes of water, feeding high quality foods and keeping the water clean. Clean out the pond filter media often and remove debris from the water surface and the substrate on a regular basis.The Koi is a carp that was selectively bred originally in Japan for desirable colors. Koi can get to be very large with 2 feet plus being a common size for adult fish. Because of their large size Koi are pond fish and they do best in large outside ponds. Each fish needs several hundred gallons of water to adequately care for them. A common mistake is to buy too many fish for your pond. While young, the volume of water in the pond may be fine, but as these fish grow they will need larger volumes of water to prevent growth stunting.Determining what and how often to feed your fish depends primarily on water temperature. In warmer water (60-85 degrees) the metabolism of the fish is high and they can be fed 2-4 times per day. At this time you should be feeding a food with a high protein level such as Pond Care Summer Staple Food. If the water rises to 90 degrees or above you should stop feeding. In spring and fall when your water temperatures fall to 50-60 degrees, you should reduce feeding to once every 1-2 days and feed a low protein food such as Pond Care Spring and Autumn food. When the temperatures drop to below 50 degrees stop feeding the fish. On warm days the fish may become active and "beg" for food. Don't be fooled. Stay strong and do not feed. If the fish do need a little food, they will find enough growing in the pond. The algae that coats the pond liner is all they need. These cold temperatures slow the metabolism of your fish and food will not be properly digested. It can take 3-4 days for the fish to digest the food. It's not worth the fish's life to give it food.