Easter eggs!

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First day after Easter holidays I found several egg cases in the Lineus red and green aquariums. They were sorted by aquarium and appearance and kept in the incubator in small plastic dishes. Lineus longissimus also spawned! Maybe on Saturday or Sunday? There was a huge white mass of eggs/sperm in the water. I collected everything in glass bowls, did a few changes using a filter and started picking embryos that were swimming (gastrula and early pilidium larvae).