Reef Mat 500 Replacement Roll torch and magnesium concentration of ~5

and magnesium concentration of ~5 ppm

Push against rock where you want it and twist the piece a couple times

It is recommended that 10 - 20% of the total water volume in an aquarium system be replaced every 7 - 10 days

Sodium tetraborate

Reef Mat 500 Replacement Roll torch and magnesium concentration of ~5Although specific lifespan will vary according to system paramenters such as volume, bio load, feeding schedule, and initial water quality; each 28m roll of filter fleece is expected to last 5 8 weeks on a moderately stocked 80 gallon reef system. Bare bottom tanks will typically exhaust rolls at a faster rate. Additionally, usage rate may be significantly higher for the first few weeks after installing a ReefMat while your system adjusts to the new