Betta Basics 250ml Holiday 3 mm is recommended for

3 mm is recommended for aquariums inhabited by bottom-dwelling fish (the fine sand does not damage their skin)

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it is produced with higher protein levels

calcium propionate

Weight - 18

Betta Basics 250ml Holiday 3 mm is recommended forBetta Basics is designed to provide the optimal environment for both betta and plant. Betta Basics removes any chlorine, chloramine and ammonia. It buffers the water to a pH of 7. 0 and promotes vigorous health and growth. Why It's Different Betta Basics will remove chloramine and ammonia in addition to chlorine. It is specifically formulated for regular use in a closed system such as a betta bowl. It also provides an ideal environment for plants.