April 10, 2023
By Robert Fisher, Marine Biologist
Aquatic Nutrition: Feeding Your Fish Properly
Overfeeding is one of the most common mistakes in fish keeping, leading to water quality issues and health problems. Here's how to feed your aquatic pets properly:
1. Understand Your Fish's Diet:
Fish species have different dietary needs:
- Herbivores: Need plant-based foods (spirulina flakes, algae wafers)
- Carnivores: Require protein-rich foods (brine shrimp, bloodworms)
- Omnivores: Need a mix of both
2. Feeding Frequency:
Most fish do well with:
- 1-2 small feedings per day
- Only what they can consume in 2-3 minutes
- Fasting one day per week to prevent constipation
3. Special Considerations:
- Nocturnal fish may need food after lights out
- Bottom feeders require sinking pellets
- Breeding fish often need enhanced nutrition
4. Signs of Overfeeding:
- Food accumulating on the substrate
- Cloudy water or algae blooms
- Fish with distended bellies or refusing food
Remember that fish metabolism slows in cooler water, so adjust feeding amounts accordingly if you keep cold-water species.