Sea urchin continues...

Our sea urchin experiments are still continuing. The other day, we discovered something so rare, that I couldn't take my eyes off it...👀👀👀 They were spawning! It was a big surprise for everyone. The color of spawning is also very vivid (clear mustard yellow). Unfortunately it didn't get fertilized since both sea urchins were in the separate aquarium, but I did get a picture and video from the rare moment. If anyone is interested, please find it below. ↓:)