Sprinklings

Sprinklings are a species that first appeared in Permafrost: Tsunostorm. Their most notable trait is that their ink is more fluid and thinner (therefore spreading faster), though is weaker and does less damage in comparison to regular ink.

They are not to be confused with Merklings, creatures that are similar to Inkling/Octoling (any humanoid species) mermaids that evolved but prefered to live in the water with a cephalopod lower half. Some have a merkling form, however.

Instead of having Princes and Princesses, their ruler is decided when the time comes (not stuck to one bloodline), so they can prevent any assassinations of the next ruler and throw off foes with their next choice.

History
The Sprinklings' main war was a territory dispute with the Pyrolings, Rinklings and Skylings. The Skylings and Pyrolings gained an early advantage, but an ice spirit named Misty took pity on the Rinklings and created the Nitro Weapons for them to gain an advantage. The weapons worked extremely well on the Skylings, but not as well on the Pyrolings. The Skylings fled (with a few joining the kingdoms' sides) and left the war, with the Pyrolings continuing their onslaught of attacks.

After a few more years of fighting, the Sprinklings got tired of the Rinklings and Pyrolings constantly changing the temperature of their water home, as well as having projectiles and foreign materials dropped in. They sent out a giant tidal wave to nearly flood both kingdoms, then got each side to stop fighting and return back to their original home. The Rinklings and Pyrolings never formed a truce, but they remained dormant until the events of Permafrost, where King Chion sent the Frost Army to capture areas under Fire Kingdom control after hearing Misty's prophecy of a fire creature overthrowing him.

In Tsunostorm, the Water Kingdom attempted to keep peace between the Ice Kingdom and Fire Kindgom, but was attacked by Skylings who wanted revenge from the past wars.

Evolution
Sprinklings evolved from Inklings/Squids who started to go on land, but still preferred being by the water. This allowed them to not be splatted by water and gave them better swimming abilities. They could breathe both on land and in water, though they typically preferred not to fight with others.

Appearance
Sprinklings (and their variants, though it also depends) have a watery pattern on their tentacles, which may also "drip" a little bit. This is partially their ink and water, though it does not hurt them since they generate more ink in comparison to other ink-making species. It also does not hurt other ink based species unless they are in a large concentration of it, as it is thin and does less ink damage.

They otherwise resemble normal Inklings/normal humanoid species.

Major Sprinklings
Atlas

Gyre

Lily (Wavewing)

Queen Thalas

Variants
Standard: Your average Aqualing (Atlas)

Aqualing: Sprinklings, but for Octolings (Gyre)

Wavewing: An Sprinkling-Skyling hybrid (Lily)

Polluted Water: Sprinklings that either come from (and can live in) heavily polluted areas or are hybrid with poison/venomous creatures.

Abyssal: A deepsea variant of an Aqualing, either being born in the depths, a hybrid of a deep sea creature, or a hybrid of a Shadowling.

Boiling: A Pyroling Sprinkling hybrid.

Cold Water: A Rinkling Sprinkling hybrid.

Torrential/Tsunami: VERY strong versions of Sprinklings with more control over their powers (Queen Thalas)