Seashells are a separate non-food chain. They can be useful, but they should not crowd out food chains unless the order board or event track is clearly asking for them.
Visual Chain Progression
Scroll horizontally to view the full evolution line from base drop to max tier.
Item Levels
Use this table to stop at the level your order needs instead of merging past it.
FAQ
Are seashells part of normal food orders?
No. Treat them as a separate non-food chain, so they should not take over space when food orders are more urgent.
Should I keep shell items in storage?
Keep one useful midpoint only if shell requests are common on your board. Otherwise, prioritize active order chains.