You decide to catch a big fish in the lake. You sit in a boat for about 3 hours and hold your luck with the bait You feel how the float twitches and you gently pull the fishing rod towards you, you feel how something resists and pulls the water, that because of this you could not overcome the resistance and the water falls. In muddy water, you feel like someone grabbed you and pulls you to the bottom. It was Olive Catfish - a predator