use an empty water bottle and cut out the top and invert it so i creates a tube for them to go in and have trouble getting out
I had to get a dotty back out. Catching with a net is near impossible.
I cut a water bottle in half then flipped the top upside down so that the brim you drink out of was in near the bottom of the bottle. Then I put fish food in the bottom and put the bottle infront of his fav hiding spot. 10 min later I came back and he was stuck in it.
Bottle trap design. It'll catch most fish as long as they can fit through the lid hole. I've had it catch gobies, a damsel, a blenny, shrimp, and bottom-dwelling snails in my saltwater tank. In my freshwater tank, it can catch most mid-to-bottom level fish if you don't feed them for a day and then put their favorite food in it. You'll probably catch a few extras.