Beef heart mix for community fish

I was asked today about what to do with Spirulina, so below is a generic beef heart mix that can be made up with Spirulina and that should be suitable for most community fish. Beef heart should be fed to most community fish only as a treat, not as a staple, as it does not provide a balanced diet, but using a high proportion of generic fish food and spinach should help balance it out. 100g of beef heart is approximately 1/8 of a heart before it is prepared for fish food.


  • Type: fish food
  • Preparation time: 15 minutes
  • Total time: 1 hour
  • Yield: 600g


  • 100 g spinach
  • 100 g generic dry fish food (like flakes or pellets)
  • 1 clove garlic
  • 100 g beef heart (fat, arteries, veins and lining removed)
  • 20-30 g Spirulina
  • gelatin (enough to make up 500 ml)
  • water


  1. Soak the spinach in boiling water until it becomes soft
  2. Crush or pulverise the fish food until it is in small pieces or powder
  3. Cut up the beef heart and spinach into small pieces
  4. Mince the garlic (I use a garlic press for this)
  5. Place spinach, dry fish food, garlic, beef heart and Spirulina into a blender, mixing until it forms a smooth paste (some people prefer to use a mincer)
  6. Make up the gelatin with 250 ml of water and add into the blender
  7. Mix the gelatin into the paste
  8. Place mixture into containers to chill before freezing (I used 10 10×15 cm grip-lock bags, placing approximately two large tablespoons into each bag)
  • Author: Ekaterina Gerasimova
  • Published: 12th March 2012