Crystal Blue Natural Pond Cleaner – Muck and Sludge Remover, Safe for Koi – 1 Gallon Price: $39.99 (as of 02/01/2024 23:54 PST- Details)

SAFELY breaks down pond muck and dead vegetation, also helps neutralize nitrates and phosphates – two things that can feed growth
SUPER charges naturally occurring pond bacteria for a healthy, clear pond
NATURAL bacteria that helps maintain pond muck levels, dead leaves, odors that can hurt the healthy balance of your pond or lake