(Optional) Explain the considerations involved in selecting a fish.

Explanation should include selection based on

• knowledge of the species
• source
• health issues
• environmental considerations
• purposes. 

Process/Skill Questions:

• What research should be done prior to introducing multiple species of fish into the same aquarium?
• What are the time, cost, and environmental factors to consider when selecting pet fish?
• What local sources exist for acquiring pet fish? What are the advantages and disadvantages of each?
• What is the basic cost of the equipment needed to establish responsible fish ownership?