morays, mores

Morays or morays is the plural ( more than one ) of "moray", meaning an eel that usually lives in the ocean, most commonly in a tropical climate--
The longest morays measure more than ten feet.
Tourists were permitted to feed the morays in the past, until too many were bitten.

Mores or mores ( most commonly pronounced to rhyme with morays ) means the fundamental values or moral views of a group--
Most people never deviate markedly from the mores of their family and friends.
The mores of a group are observable through social behavior.

Now that you know that, you can say--
"One of the more interesting mores of this group is the sharing of morays at a great feast."

Note--"more rays" ( nearly rhymes with morays ) means additional ( more ) fish with a flattened body, that live on the sea bottom ( rays )--
There are more rays near this cove than I have ever seen in one place before.
"More rays" may also mean additional ( more ) beams of light, or lines that look like beams ( rays )--
The cat sleeps where there are more rays of sunlight.