Purchase a dark cloth, a piece of cardboard, or Styrofoam to shade eggs and newly spawned salmon from light. Determine how many eggs you’re going to raise prior to purchasing your aquarium. In general, every 25 gallons (95 L) of tank volume can accommodate approximately 100 eyed trout eggs. Decrease the temperature of your aquarium to 50 to 52 °F (10 to 11 °C) about 12 to 24 hours prior to the arrival of your eggs.
Purchase a chiller from online suppliers or local pet stores.
Never put your tank next to a radiator (unless it’s inactive).
If your tank’s pH is acidic or extremely alkaline, change the water to avoid causing health problems for your fish. [3] X Research source
Use ice that is made from dechlorinated water. If you can’t, make sure your ice is sealed in a 0. 528 gallon (2. 00 L) bottle or Ziploc bag prior to placing it in your cooler.
Acclimation should take between 15 to 30 minutes. Once the tank and jar and within 1 degree from each other, the acclimation process is complete.
Even after some start to jump out on their own, let remaining fish continue to learn how to swim and navigate the tank at their own leisure. [6] X Research source
Don’t remove eggs that exhibit uniform cloudiness—it’s nothing to worry about.
Leftover shells from hatched eggs are broken down by fish enzymes into a foam that can gather on the sides of your tank. Scrub this foam off daily using an aquarium sponge to keep it clean.
You might need to feed your fish on 2 separate sides of your tank to make sure all of them are getting food. Wait 10 minutes after feeding and remove remaining food that collects in one area. If you don’t do this you risk overfeeding fish, with can create problems with ammonia levels. Purchase a turkey baster to collect extra waste and food.
Some fry will not learn to feed properly and not survive—this is normal. Remove the basket from the tank when you determine that it is completely empty.
You might also notice two-headed trout, which can be removed as well. [8] X Research source
Use your small paddle to sink the food to your fish. Since you’re more likely to run out of the latter at the end of the year, finish your size 1 food before beginning to use size 2.
Once your fish are 2. 25 inches (5. 7 cm), you can continue feeding them size 2 food—just increase the amount to 10. 9 grams of food daily. [11] X Research source At this length, you can move your fish to a different aquatic environment (such as a rearing rake or pond) if you like.
