40mm Aquarium Cichlids Tumbler Tropical Fish Egg Incubator Ornamental Hatchery Fish Eggs Instead Mouth Brooding Accessories. The curvature of the air lift joint is greater than 90 degrees, which is not common in the market, 45 degrees, the water is more comfortable, and a small air pump can drive it. Connecting parts such as gas lift joints are used in AD. Ultra-transparent thickened acrylic incubator tube with flat incision. The sieve plate hole is 1mm, and the lower sieve plate is glued to the main hatching room to effectively prevent fish eggs from escaping. Filter cotton uses black biochemical cotton, non-black sponge. The bracket is all acrylic for easy observation. Four transparent suction cups, more reliable. It can be used normally even if you change 1-2.