Aquaponics End of the Year Review Quiz

What can cause an entire tank of fish to die unexpectedly?

• Excessive light exposure

• Low water temperature

• High ammonia levels

• Overfeeding

What is the primary role of nitrifying bacteria in aquaponics?

• Increase water temperature

• Convert ammonia to nitrites

• Provide oxygen to fish

• Feed the plants

High levels of nitrites in an aquaponics system can:

• Increase water clarity

• Cause fish stress or death

• Promote plant growth

• Enhance fish appetite

A sudden drop in pH may indicate:

• Increased oxygen levels

• Fish breeding

• Bacterial bloom

• Plant overgrowth

What should be the levels of dissolved oxygen in your aquaponics system?

• 15-20 PPM

• 10-12 PPM

• 1-2 PPM

• 5-8 PPM

What do nitrates in the system primarily benefit?

• Fish health

• Plant growth

• Water clarity

• Bacterial activity

What is the ideal temperature for your aquaponics system?

• 10-15°C

• 35-40°C

• 18-30°C

• 5-10°C

What is the first form of nitrogen waste produced by fish?

• Nitrogen gas

• Ammonia

• Nitrites

• Nitrates

Which fish is commonly used in aquaponics due to its hardiness?

• Goldfish

• Tilapia

• Salmon

• Trout

Fish have taste buds and the ability to taste. Taste buds are located in their:

• Gills

• Fins

• Scales

• Mouth