Pretty good mod,I like this,it not broken

No wait have high tide essence trigger effect if A MOON if next to the ocean

add a similar item like clear sky called high tide which make oceans consider everything adjacent
and essence form will make high tide buff when 2 oceans are next to each other

Pretty good mod, feels mostly like it could be a real symbol, but a few things I'd change.
1: Like Pixeltd said, I think that it could use a lower spawnrate. Maybe 5%?
2: Typically with symbols in LBAL, the black border is present on all adjacent pixels, including diagonally. It works for now, but it would be nice for the sprite to be consistent with actual symbols.
Other than that, great mod, and I especially like how it gets buffed by moon as well!

try lowering the fish spawnrate, seems ki da broken if not lol

as far as i know the Clear Skies item works as intended with this, as it is adding itself to the Moon's list of effects

it should work with the one item that makes the sun and moon adj all the time work with this aswell, or have a similar separate item

Fixed! thanks for the comment!

Great idea! Assuming you're using the poslikes group, add "and <last_poslikes>" in your description after "<group_poslikes>" to make the Sand Dollar appear in it.