Hydros Triple Optical Water Level Sensor - Hydros3 Water Level Sensors for Added Redundancy The HYDROS Triple Optical Water Level Sensor can be used for a variety of aquarium applications, such as sensing when your tank needs to be topped off or detecting when a dosing container needs a refill. It plugs into any Sense Port on a HYDROS device (like the Control XS, X2, X4, X10, etc.) and does not require any additional power source. The HYDROS Water Level Sensor contains no moving parts that can fail.

you can fine-tune your lighting to match your aesthetic preferences

Proper lighting encourages strong growth and enhances their vibrant hues

Add this product at the maximum dosage of 1 drop (1/20th ml) per 35 US-gallons daily to maintain a concentration of 0

More Spread

4+ for moderate cases 40-75 gallons: 4-6 nudibranchs for moderate infestations

Max Wattage: 40w

Mimicking their natural conditions—stable water parameters

That is precisely what distinguishes the small Comline® DOC Skimmer 9001 - a true "plug and play" skimmer for small seawater aquariums with 20 to 140 liters (5

Great for large marine systems: 1050-3000 gallons

XP-5000 INT/EXT/SSS

Classic Recirculating / External Protein Skimmer

*HYDROS iV is not included but recommended