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Aquarium Maintenance

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Dissolved Oxygen (DO)

Last Updated: March 16, 2022

Dissolved oxygen (DO) is a crucial component of our trout tanks.  Trout and other salmonids prefer cold water because they require high levels of dissolved oxygen and cold water can hold more oxygen than warm water.  DO is also a limiting factor for nitrifying bacteria – the more Oxygen available, the better your biofilter will

Help! My fish are dying! (Ammonia Explained)

Last Updated: May 18, 2022

All About Ammonia and Trout Excess ammonia causes many problems in fish. One significant effect is damage to the gills. Although the most obvious consequence of this is impaired respiration (breathing) this isn’t the only problem. Gills are also important for acid-base balance (keeping the pH of the fish’s blood correct to allow for normal

Maintenance Checklists for fish and tank care

Last Updated: May 18, 2022

Daily checklist: Monitor tank temperature: an increase in temperature might indicate a chiller problem or a change in the tank insulation. Feed trout: only as much food as they can eat in a couple of minutes (one pinch or less when they are smaller). You may feed more than once a day, however. There are also

Nitrogen Cycle

Last Updated: March 17, 2022

Every new aquarium set-up goes through a process of establishing beneficial bacterial colonies. This process is generally known as the nitrogen cycle, but is also called nitrification, the start-up cycle and/or the break-in cycle. As you know, your aquarium is a closed environment so all of the waste excreted from your fish and uneaten food

Preparing Your Tank: Pre-Cycling

Last Updated: October 21, 2022

Pre-Cycling the Tank Prior to Egg Delivery Copied from Maryland’s Trout in the Classroom Manual, section by Chuck Dinkel and Robb Cramer. Pre-cycling is a process designed to put your tank through the nitrogen cycle before the arrival of your eggs. When this works, it establishes a colony of good bacteria in your filter that

Troubleshooting FAQs

Last Updated: September 16, 2022

Troubleshooting FAQs (from old site) A wonderful resource has been published in the PA TIC program.  Read their Aquarium Resource Guide, put together by their agency scientists and TIC coordinators. Join the TIC/SIC National Google Group!This group is a great forum for questions, discussions, and announcements about everything Trout or Salmon in the Classroom! Simply apply

What is water hardness and why does it matter?

Last Updated: August 24, 2022

KH and GH: Carbonate alkalinity and General Hardness. Why does it matter? How can I test for KH and GH? What do I need to do to change the levels? The national TIC and SIC network is currently discussing the role of carbonate hardness (KH) and general hardness (GH) in trout tanks.  It is clear