Monitoring your aquariums

Controllers and monitors help maintain stable water conditions in saltwater aquariums by tracking key parameters and providing insights into the health of your aquarium. In marine aquariums, small changes in water chemistry can have a severe impact on your livestock, making it essential to monitor and control your tank.

When selecting your controller or monitor, consider the parameters you want to track, how much automation you need, and if remote access and scheduling is important.

For even more automation, browse our selection of Auto Top Ups, to easily maintain your water level, and our Marine Equipment range.

What do aquarium monitors do?

• Monitor parameters: Take essential readings including pH, salinity, and ammonia
• Real-time data: Identify issues before they become problems
• Receive alerts: Warnings can be sent when parameters are not in the chosen range
• Track trends: Record data and identify patterns for better stability

What do aquarium controllers do?

• Automate essential equipment: Control heaters, lighting, dosing pumps, and other connected devices
• Maintain conditions: Make adjustments automatically
• Create schedules: Set your equipment to run when needed
• Integrate multiple devices: Manage multiple pieces of equipment from one controller

Why choose Swell UK?

At Swell UK we provide:

• Price match guarantee: For the best prices on leading brands (see T&Cs)
• Next-day delivery: Fast and reliable UK shipping
• Extensive product ranges
• Expert guidance: Our marine specialists are here to help!