https://srac.tamu.edu/fact-sheets/serve/23Channel catfish spawn when the water temperature is between 75° and 85° F (23° to 30° C) with about 80° F (27° C) being optimum. Wild populations of catfish may spawn as early as late February or as late as August depending on the location. The length and dates of the spawn ing season vary from year to year depending on the weather and area, but peak spawning time in Mississippi usually occurs in May.
After the eggs are laid they will usually hatch in 5 to 10 days depending on water temperature. At 78° F (26° C) the eggs will hatch in about 8 days. For each 2° F (1° C) rise in temperature above 78° F, sub tract 1 day, and for each 2° F (1° C) fall in temperature below 78° F, add 1 day to get the approximate length of time required for hatching. Water temperatures below 65° F (18° C) and above 85° F (30° C) will reduce hatching success. Newly hatched fry have a large yolk sac which contains the nourishment they need for the next 2 to 5 days until they are fully developed and are ready to start feeding. After the yolk sac is ab sorbed, the fry take on their typical dark color and will begin to swim-up looking for food.
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