Best tropical fish Holiday food

Raising Daphnia for Tropical Fish Food

daphnia vatsDaphnia is a highly nutritious, live food that you can easily raise to feed your tropical fish. Daphnia are also know as “water fleas” because of the way they jerk and move while swimming through the water. Daphnia are small, fresh water crustaceans that can be found all over the world in freshwater lakes, streams and ponds. They are an excellent source of fish food due to their high protein content. We feed lots of daphnia to our discus, especially the young fry(1/4 inch to 3 inch size).

You can grow daphnia in almost any type of container. We grow them in concrete vats in our greenhouse. If you need a lot of daphnia, it's best to use a container that has a large surface area(a large plastic tub, 40 gallon aquarium or a kiddie swimming pool). If you don't need a lot of daphnia, you can also raise them in a 1 gallon glass jar, 3 liter soda bottle or 10 gallon aquarium.

Always age the water in your container before adding the live daphnia culture. Daphnia does not tolerate chlorine. It will usually die if you add tap water directly into your container when making water changes.

  • We age the replacement water for 10 to 14 days in the tubs above the daphnia vats. The water will turn green with algae and provides some food for our daphnia when we do a water change.

The pH of the water can range from 6.0 to 8.2. We usually keep the pH of our water at around 7.8.

Change 20% of the water at least every 2 weeks. Remember to use aged water as your replacement water. You can even use your old aquarium water, when you do a water change, as replacement water. If your daphnia culture is not reproducing quickly and thriving, you might want to do more frequent water changes.

The ideal temperature for growing daphnia is usually 72 to 85 degrees. When the water gets too warm, the daphnia culture will stop reproducing.

The daphnia culture doesn't need much oxygen to thrive. Containers kept outside with a large surface area don't need any aeration at all. Containers kept inside should have very light aeration(just enough to break the water surface). Too much aeration(bubbles) can kill off your culture.

It's a good idea to have multiple containers of daphnia growing at the same time. Having a backup culture is great insurance if a daphnia culture goes bad and dies.

Keep your daphnia containers in the sunshine. 6 to 8 hours of lighting is best. You must have a light on your daphnia for at least 10 hours if you grow them indoors. Placing their container in a sunny window is also a good idea as long as the water doesn't get too hot.

Daphnia will eat algae(green water), yeast and bacteria. We feed our daphnia yeast. We put yeast powder into a bucket with water and mix it. We then add enough of the yeast mixture to our daphnia container so that the water is slightly cloudy. The daphnia are filter feeders and will eat the yeast in the water. We feed the daphnia whenever the water becomes clear. Do not overfeed.

  • Daphnia harvested from our vats.

We use a fine net to catch our daphnia. It's best to move the net in a slow figure 8 motion when trying to catch them. We then sift the daphnia through several different size strainers. The larger size daphnia is fed to the larger size discus. The smallest daphnia is fed to the tiny discus fry.

Tetra Tetra 77150 TetraVacation Tropical Slow-Release 14 day Feeder, 1 pk, 1.06 oz
Pet Products (Tetra)
  • Allows fish to eat when hungry vs. plaster feeders that dissolve.
  • Will not pollute water or negatively effect water quality.
  • Gel blocks may be left in the aquarium when regular feeding is resumed.

Good luck

by OwnedBy_a_Siberian

I recently set one up, and thank goodness my brother is a fish know it all. he helped so much. His first piece of advice was get a good biological filter and cycle the tank. google this. the "cycle" stuff you buy at the store helps, but it doesnt REALLY cycle it.
after you've gone thru your ammonia, nitritie and nitrate spikes - and everything tests safe, you can start to add fish. but add them slowly (not a lot at once) or you can spike again and put stress on the fish.
its best to test the PH of your water before picking what kind of fish you have


by bigdaddylove

Get a small plastic pond the can stand by it self ( not one made to be put into the ground) they're a little hard to find but they are out there. get an undergavel filter and two powerheads; one for the under gravel and one for the fountain. Buy about 20-30# of natural looking gravel. Next go to orchard supply hardware (OSH) and buy aquatic plants. Pre spring and spring/summer have better selection. Get dwarf umbrella plants, japanese rush and whatever semiaquatic plants they may have. I believe the grower is called Water music or something like that. OSH has the best selection and prices as far as I am concerned

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