Fish Disease Diagnosis
Fish Disease Treatments
Ponds, Aquaria & Filtration



Menu
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
Downloads
More Downloads
Site Sponsors
Pondrx.com - Fish medicines with usage guides

Koistuff.com - 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

You mention feeding Cheerios until the bio filter "catches up" in the spring.

How do I tell that my biofilter has indeed caught up?

Is it a certain temperature, build up of "muck" on the pebbles, a chemical test?


Your biofilter is "caught up" when the nitrogen numbers (Ammonia, Nitrite and Nitrate) are all at acceptable levels.

This means:

Ammonia - Trace or less

Nitrite: Trace or less

Nitrate: Under 100ppm

A cycled filter has a musty smell to it, and the media will have a plain brown slime on it. This plain brown or greenish slime will be composed of autotrophic and heterotrophic bacteria which use nitrogen from the water. These are the organisms which reduce the nitrogen to those safe levels. This slime coating is called BioFilm and is EXTREMELY important in your filter, and on the tank sides. Also check out information in this site about BioSeeding. (Look it up!)

Temperature affects the rate at which the Cycle progresses and the rate at which these bacteria will reduce nitrogen. This is why Cheerios are good - when the bacteria are slower in cold water - the Cheerios provides minimal nitrogen for the bacteria to be inundated with. So, you're feeding, but the fish aren't suffering with high accumulated nitrogen in cold water.



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.

Wife Beater

Sample download

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