Not Capital Letters
This page is the CodyCross answer for the clue below from Pet Shop, Group 346, Puzzle 5 (Salt Water Tanks).
Question is: Not Capital Letters
and the answer is: LOWERCASE
Word Meaning:
LOWER CASE — The minuscule or small letters (a, b, c, as opposed to the uppercase or capital letters, A, B, C).
Definitions from Wiktionary.