TMC Reef Bio Gro 2.0 S Algae Reactor Marine Test Kits A sensor changes reversibly from

A sensor changes reversibly from yellow to green to blue

Stress Zyme is completely harmless to humans and pets

Regularly monitor water quality parameters such as temperature

Highly attractive staple food for marine and freshwater tropical fish

and nitrates

TMC Reef Bio Gro 2.0 S Algae Reactor Marine Test Kits A sensor changes reversibly fromAdvanced Algae Reactor for Growing Macro Algae Use to reduce nitrates and phosphates in aquarium Double sided Aquaray lighting board included Compact design Use internally or externally Advanced, compact reactors specifically designed to grow macro algae This macro algae can be used to reduce unwanted nutrients such as nitrate and phosphate from your reef aquarium and also help improve water quality Includes a high performance, double sided LED board