Guppy Fry Care
For the time period of birth to 1 month of age
Once you’ve successfully birthed the fry there is the next step of special care that they require. These special needs are, food, water, temperature.
They fry need a high protein diet mixed with a high quality flake food that is a supply of greens.
The best protein filled food that also increases growth rate is the baby brine shrimp. Brine shrimp can be bought as frozen cubes, the adult brine shrimp is also sold but make sure the package says baby brine shrimp. Or what I’ve come to do, is I’ll by a glass vile of brine shrimp eggs and hatch them myself. This way has proven to be a little more work but the money I began to save help steer me to the hatching of brine shrimp path. If you plan on buying the cubes make sure that when you feed the fry to not just drop a whole cube into the tank.
This could lead to pollution of the water since as the cube melts, brine shrimp will begin to spread throughout the tank. The fry can’t eat fast enough to clean up the floating mess of shrimp. So what I do is I’ll cut the cube in half then hold the frozen cube in my hand just under the surface of the water. This is a cleaner way to feed the fry, and the majority of the food is eaten which saves money as well :). Now brine shrimp is extremely good for the fry, but they also need a vegetable supplement to help build and keep their immune system up, it’s also essential to help their body function properly. The best thing that I’ve found for such an important role is a high quality spirulina flake food.
I’ve read many books and articles, but from personal experience I’ve found that the batch of fry that you have born in your water are already adjusted to the water conditions and don’t need to be specially treated as say if you were just introducing a fish to your tank. Just do your regular water changes and you should be fine. Just be careful not to suck up your new finny friends 🙂
Now this isn’t as important as say food or water, but it’s still something to keep in mind when trying to raise healthy fry. During the summer months I actually turn off my heaters (I live in MN) and let the ambient temperature keep my tank warm. Now I just started doing this not that long ago and I observed some surprising results. It seems that with the fluctuation of the temperature in the day to the temperature of the night, that the fry seem to be healthier and more active. I’ve heard from some that this is because this natural temperature change can help build the immune system of the fry.
But I’ve also done some observing of some fry when I’ve kept a constant temperature of 81 degrees Fahrenheit, the fry had a better appetite and grew faster. I figure that because the temperature is higher that the fry can digest and absorb the food faster and with me keeping up with their appetite they have the ability to grow faster.