Marina Submersible Mini Heater 50W 15cm (38L) SO Check calcium every 2 weeks

Check calcium every 2 weeks and adjust amount or frequency accordingly

Maintain calcium level between 410-430 mg/L

Then use 5 capfuls (25 mL) for each 400 L (100 US gallons) daily for 7 days

API® Tap Water Conditioner removes these toxins instantly

Marina Submersible Mini Heater 50W 15cm (38L) SO Check calcium every 2 weeksSmall yet powerful, the mini 50 watt Marina Submersible Aquarium Heater provides reliable heating for fresh or saltwater aquariums up to 38 litres (10 US gal) aquariums. The heater includes many practical features for easy use, safety and convenience, including an easy to access temperature set dial, on off pilot light indicator, and a bumper guard for fish safety. Made of durable high impact glass, its built to last under normal aquatic conditions.