ReefMat 500 Replacement Roll Calcium Test Every ReefMat includes a fail-proof

Every ReefMat includes a fail-proof solid-state level sensor

but the main goal is to produce enough flow to keep low-flow spots from forming in your tank and help elevate detritus to be sucked into the filtration

Safely mount electrical equipment

1x Nero 3 Controller

and the 4 x USB ports have a single LED indicator

ReefMat 500 Replacement Roll Calcium Test Every ReefMat includes a fail-proofReplacement fleece roll for the ReefMat 500 Fleece Roller Filter. Although 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