Treasure: Triple standard (all gems are pearls) ?
For this reason, a pearl dragon hoard can contain up to 5,000 gp in pearls for every age level the dragon has (these pearls are in addition to normal treasure types.)
Re-reading the original text, it sounds like they just hoard more pearls because they are easier to aquire in their domain.
How about Standard coins; triple standard goods (all gems are pearls); standard items?
The CR looks fantastic! Nice work.![]()
Level Adjustment: Wyrmling +2; very young +3; young +4; juvenile +4; others —?
Almost done. Just need to add the Hold Breath ability and its Con modifier multiplier. 10x perhaps?
Triple standard treasure and a 24x hold breath modifier are ok.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.