Yes, otocinclus lay eggs. On average, female otocinclus can lay approximately 50 eggs in a spawning session. They usually lay their eggs in small clusters of 3-6 eggs. These egg clusters are typically found on rocks and plant surfaces around the tank. Otocinclus eggs vary in color, ranging from transparent, cream, to yellow-green. Once fertilized, the eggs will hatch within 3-4 days.
Keep in mind that otocinclus don’t mate and breed easily. Otocinclus eggs will be a rare sight for most aquarists. Here’s what you can do to increase the likelihood of your otocinclus spawning:
- Separate the breeding pair and keep them in a 20-gallon tank
- Feed them a high protein diet of algae wafers, daphnia, and brine shrimp
- Keep the temperature around 75° F and 78° F (23.8° C and 26° C)