Lefunpets Aquarium Fish Breeding Box for Baby Fish Hatchery, Double Guppies Hatching Incubator Isolation Box Size:S 5.2x2.7x2.9 inch Size:M 8.3x3.7x3.9 inch Fish Breeding Box Features 1.Perfect isolation and protection for sick, injured or pregnant fish from offensive fish, improve the survival rate. 2.High transparency crystal hatchery box makes it an extremely interesting thing to watch the lying-in fish to deliver baby fish. 3.Small gap, to allow normal water flow but will keep the small fish from going out. 4.Fits the removable grating in the box so the newborn fish can be more safe. 5.Comes with isolating board and strong suction cup , firm and space-saving design. 6.Suitable for freshwater and marine aquarium. Warm Tips: 1.Allow the breeding box to sink slowly in the aquarium,and the breeding box will fill up with aquarium water and stay floating. Newborn fish have the instinct to hide in tight crevices immediately after they are born. In this case, you had better put something inside for them to hide, such as water plants or moss balls in case that they will get stuck between the net and the plastic frame.Self-contained Breeding Box-It can separate aggressive fish, injured fish, small fish, shrimp, and other sea clownfish. Safe Material-made of safe crystal transparent acrylic material to keep baby fish, injured fish safety. Unique Self-floating Design-with 2 suction cup, 2-layer combination does not occupy space. It ensures the breeding box above water without sinking. Multi-purpose Use-designed for fish or shrimp breeding, isolating or incubation. Hatching Box- inner size: 3.9" x 2.7" x 2.3" ( L x W x H ), for viviparous fish, such as betta, guppy, medaka, ect. It can prevent attack from adult fish, improve the survival rate of juvenile fish.Best Sellers Rank: See Top 100 in Pet Supplies. Color: Transparent. Style: For Aquarium. Specific Uses for Product: Indoor. Shape: Square. Item Dimensions LxWxH: 5.2 x 2.7 x 2.9 inches. Special Feature: Breeder, Isolation, Hatchery. Tank Volume: 60 Gallons. Material: Acrylic. Target Species: Fish. Brand: Lefunpets. : B07VQKFRJ9. Manufacturer: Lefunpets. Date First Available: July 24, 2019. Product Dimensions: 5.2 x 2.7 x 2.9 inches; 3.53 Ounces.