Tetra Goldfish Holiday Blocks decoration Place the diffuser at the

Place the diffuser at the very bottom of the aquarium to achieve the best CO2 diffusing effect

floating particles into larger clumps that can be removed by filter media

Made from durable

What size are the wafers

Features a stainless spring mechanism for secure back-flow prevention

Tetra Goldfish Holiday Blocks decoration Place the diffuser at theTetra Goldfish Holiday Blocks Tetra Goldfish Holiday Blocks provide healthy nutrition for goldfish for up to 14 days in a jelly basis that releases nutrients according to the fish's demand. Healthy nutrition for up to 14 days Specially developed food in a jelly basis Keeps its form and sets nutrients free according to the demand of your fish