Neon Tetra eggs are incredibly tiny and transparent, often comparable to the size of a pen's tip. They are commonly scattered at the bottom of the tank, adhering to various surfaces such as aquarium glass walls, sponge filters, and plant leaves. These eggs are initially transparent tiny spheres and develop within 24 hours to 4 days. They require an optimal temperature of 72°F to 82°F (22°C to 28°C) for successful incubation. Fertile eggs have a clear appearance, while infertile eggs may appear white and cloudy due to fungus outbreak.