Hello.

Here is a model , I also used to take Gammarus.

At night with Glow-stick or other light it becomes a Light Trap for the fish larvae.

When I put the trap at night in my Vernal-Pool, I take Daphnia and all the aquatic organisms attracted by light.

When the time comes for Mosquito larvae my traps are full.

When my Yellow-perch fry are about 11/2 inch in addition to the pellets, I give them Daphnia and other so that they will grow as quickly as possible so that they do not get eaten to much, by the large Perch when I put them in the pond.

https://forums.pondboss.com/ubbthreads.php?ubb=download&Number=13126&filename=DSCN9541.jpg

https://forums.pondboss.com/ubbthreads.php?ubb=download&Number=13127&filename=DSCN9542.jpg

https://forums.pondboss.com/ubbthreads.php?ubb=download&Number=13128&filename=DSCN9543.jpg

A+