Sera

The experienced owner of a garden pond regularly tests the water in his pond. This allows him to quickly and easily take preventive measures, eg ...

Water tests for seasoned aquarists The experienced saltwater aquarist regularly tests the water in his aquarium. This is the only way to remedy p...

Immediate remedy for all ponds Eliminates, immediately, ammonia and toxic nitrites Binds harmful heavy metals, like lead and copper Eliminates...

Immediate remedy for all ponds Eliminates, immediately, ammonia and toxic nitrites Binds harmful heavy metals, like lead and copper Eliminates...

To easily determine the concentration of ammonium and ammonia in fresh water and sea water. Ammonium and ammonia come primarily from fish droppi...