Fish Disease Diagnosis
Fish Disease Treatments
Ponds, Aquaria & Filtration

Fish Disease & Diagnosis
Fish Disease Treatments
Koi Keeping Basics
Ponds & Filtration
Case Histories
Water Quality & Testing
Using Your Microscope
Fish Disease Movies
Even More Movies
Useful Aquatic Links
Site Map
Topic Search
Frequently Asked Questions
Koi Health Book
More Downloads
Site Sponsors - Fish medicines with usage guides - Hard goods and supplies as well as live fish to your door.

Suburban Water Gardens - Hard goods and supplies

Sho-Koi Food - Growth and immunity stimulating food

KoiZyme Anti-Ulcer - Added to your pond makes Aeromonas and Pseudomonas growth all bbut impossible

Aquadyne Bead Filtration - Among the first bead filters in the US constantly improved

Was wondering if there is anyway to get rid of duckweek, massive amounts in a natural pond, they remove it as best they can and within 2 days it is completey covered. I suggested grass carp, is there any other suggestions? Presently they have bass in the pond.

Copper will remove the duckweed (and probably kill the fish too.)
Ranchu goldfish will eat prodigious amounts of Duckweed as long as they are sizeable, say 4-6 inches in length. Grass carp are affordable solutions but they will root up the Bass beds in a natural pond, and stop the sport fish reproduction, do they care?
Koi will also eat duck weed with zeal if they aren't fed anything else.

A plain old skimmer could pull the duckweed out, the large Oase pumps can handle solids of this kind up to 5/16th of an inch and could simply chuck the duck weed into the garden. Do you have a reasonable source for replacement water or should the Oase shoot the water through a window screen on a frame?

Fish disease problems? Need some help? The help pages take you through the basics of the 'fish health work-up' diagnosis method and basic fish disease treatment methods.

90% of all health problems and fish deaths are caused by poor fish keeping! The key pages are essential reading for all beginners and intermediates who are serious about disease prevention.

Expanded Content by Dr. Erik Johnson, and Used with Permission; Frank Prince-Iles ©2009 All Rights Reserved