Fluval FX4 High Performance Canister Filter 130 Count Water Test 3) Approximately once a week

3) Approximately once a week or as needed

500ml / 17 fl oz 500 ml (17 fl oz) will remove 3 ppm of phosphate from a 2000 liters (528 gallons) marine/reef aquarium

ROYAL CANIN® Maxi Adult in Gravy's exclusive formula contains a balanced supply of dietary fibre and high quality protein

API® pH DOWN pH adjuster lowers pH to make freshwater aquariums more acidic for fish and plants when levels rise too high

Fluval FX4 High Performance Canister Filter 130 Count Water Test 3) Approximately once a weekSmart Pump technology with auto start stop operation advanced microchip technology continuously monitors and optimizes pump performance Self starting just add water, plug in and Smart Pump will take over. Trapped air auto evacuated every 12 hours to ensure maximum efficiency Easy water changes eliminate need to lift heavy buckets. Simply attach hosing to output (Kit sold separately) and Smart Pump does the rest Removable, stackable media baskets