Too Many Fish?
Question of the day:What is the best product you have to control green algae (both to remove and to maintain) in a 400 gal. contained pond with 2 aeration pumps and 15 6-8in Koi?? I don’t have string type algae; just algae growth on pond sides, bottom and pump housings. Have tried several products, but always have to remove fish and pressure wash pond at least twice/year. Suggestions?
PondMeister Answer:I know this is not the answer that you want to hear and I really want to take your money but the best thing that you could do would be to remove at least two-thirds of the fish in your pond.
Using the old rule-of-thumb of 1″ of fish per every 10 gallons and assuming that you have 15 fish at 7″ each, your pond should be a minimum of 1,050 gallons to house that many fish. Koi grow at an amazingly fast rate of speed especially compared to aquarium fish so that your problem is going to get worse every day that you put it off.
By having twice as many koi as your pond can sustain, you are not only inviting the water quality issues that you are experiencing, but also are opening your pond up to serious fish health issues. Dumping more and more chemicals into your pond is NOT the answer.
Posted on: Wednesday, February 15th, 2012 at 1:22 am 
Questions and Answers. You can follow any responses to this entry through the RSS 2.0 feed.
Both comments and pings are currently closed.
I know I need to remove fish from my pond. I have a large pond (40,000 gal) but what do I do with the fish I remove? I do not want to kill them but they are too big to give away for household aquarium. HELP
April 3rd, 2012 at 5:36 pm