Update
I have made 2 different models and 2 different sizes

Size 2 fits perfectly with fluval breeding box and has an air system

Hope you like it

Breeding CPD, Danios, Tetras and other egg scattering fish

Breeding for egg scattering fish

I have made this breeding box for egg scattering fish
and now want to share it with others

Size 1

Height - 73 mm
Width - 90 mm
Length - 110 mm

Breeding box - 0,2mm Layer, 3 walls, 10% infill

Grid - 0,2mm layer, 3 walls, 99% infill

The tube has an outer diameter of 16 mm

Drill 5 10 mm holes in the bottom where the marking is

Size 2
Length 120 mm
Width 120 mm
height 75 mm

Breeding box - 0,2mm Layer, 3 walls, 10% infill

Grid - 0,2mm layer, 3 walls, 99% infill

Air tube - 0,16mm Layer, 3 walls, 99% infill

it is printed in petg.

The tube has an outer diameter of 16 mm

Drill 5 10 mm holes in the bottom where the marking is