RODI, Salt, and Filtration Media checked by reef math.

Professional buying context

• Skipping RODI planning because tap water is cheaper often turns into a more expensive algae fight.
• Check source water, RODI stage count, salt volume, test cadence, and media dosing caution.
• Professional fit checks should validate the catalog value behind "stable reef = pure water + salt supply + measured nutrient export" against the actual tank dimensions, bioload, livestock goal, and maintenance cadence.