Tidal.

The most well known aspect of Tidal class dragons is living in water. Dragons that live in both stalt and fresh water can be considered Tidal. Dragons that spend most of their lives in water and semiaquatic Dragons that just live near the water are both considered Tidal.

Tidal class dragons tend to be larger then other classes of dragons.

If you don't know how to seduce a specific Tidal class dragon, try feeding them alot of food. Big body's require alot of food and finding enough to sustain them can be stressful. Giving them alot of food will relieve this stress and if your lucky, get them in the mood for mating.