Hatching Jar Size:Replacement Tube Produces a strong volume of

Produces a strong volume of medium size bubbles (approximately 3 mm)

Calibration ring for simplified calibration

200 sheets per pack

completely reusable and will last indefinitely

The skimmer is collapsible

Hatching Jar Size:Replacement Tube Produces a strong volume ofThis McDonald type hatching jar has become the industry standard. It is a high impact, all plastic egg hatching system. Simply direct about 1 gpm of water (depending on the weight of the eggs) into the center. The eggs will be uniformly rotated. The fish hatching jar comes with a top screen that prevents the loss of eggs. When the fish hatch, remove the screen to let the fish swim out. Use it for trout, salmon, hybrid striped bass, catfish, tilapia