 Spawning area was over gravel at the bottom in the lower part of a riffle where water was 1 to 3 inches deep.Depressions 5 to 12 inches in diameter served as nests.Fish will vibrate together over a depression for 5 to 6 seconds, rest for 30 seconds and then repeat the cycle for about 5 minutes and then return to the pool, this cycle is repeated every 10 minutes.