Boveda Humidity Control Packs (58% or 62%) PH Pen you can safely use Fish-Mix

you can safely use Fish-Mix inside as well as outside without running the risk of overpowering your growing environment with the smell of fish

usage of the Block without sleeve is

Odor control: Flush 1 cup a month in septic tank or sprinkle around the pets waste area

and DO NOT need to be purchased separately

Length Width Height - External Internal Capacity 1m 1m 12cm 100 Liters

Boveda Humidity Control Packs (58% or 62%) PH Pen you can safely use Fish-MixBoveda Humidity Control Sachets will add or remove moisture within your storage container to maintain a specific relative humidity level. What allows Boveda to do this is its unique ingredients and a thickening agent contained within a reverse osmosis membrane produces a 2 way humidity control. Maintain optimum humidity to prevent mold from forming or over dried or too crispy product. Boveda is made from a combination of salts and purified water, so