Tier 3 Aquarium ★★

Taken all the way down to base materials, one Tier 3 Aquarium is 3 crafting steps deep and needs 8 intermediates — Astral Birch Lumber ×5, Hardsilver Ingot ×4, Terminus Putty ×2 and 5 others — which resolve to 16 distinct raw materials totalling 91 units, plus 90 crystals.

That bill outweighs 13,450 of the 13,602 recipes tracked here and 1,502 of the 1,552 Carpenter ones, and 337 recipes nest deeper.

Only 4 of those crystals go into the final step; the other 86 are burned by the intermediates, so the real crystal cost is 56 Wind Crystal, 7 Lightning Crystal, 7 Water Crystal and 5 other kinds.

The chain crosses three disciplines — Carpenter to Lv 60, Alchemist to Lv 60 and Goldsmith to Lv 56 — so no single class can finish it unaided.

9 of the 16 raw materials come out of the ground, and 2 of them are time-gated: Astral Moraine (0:00, 12:00) and Seventh Heaven (4:00, 16:00). The widest gap between consecutive opening times is 8 Eorzean hours, about 23 real-world minutes.

Of the intermediates, Hardsilver Ingot has the widest use: 117 recipes call for it, spanning seven of the eight crafting classes.