

The D&D Compact Auto Top-Up redefines the management of the water level in Aquarium. This intelligent filling unit combines minimalist design with advanced technology. Thanks to its dual optical sensor without moving parts, it offers unparalleled reliability to secure your reef system.
Maintaining stable salinity is crucial for the survival of corals and marine fish. The osmolateur D&D Compact Auto Top-Up is more than just a charging unit (ATO). It is a real-time monitoring system that protects your ecosystem against excessive evaporation.
Unlike conventional osmolators with mechanical floats subject to blocking, system D&D uses Optical sensors without moving parts. In case of failure of the first sensor, the second takes the relay immediately. In addition, a visual alarm alerts you instantly in case of anomaly, providing integrated protection in real time.
Thanks to its extremely reduced dimensions, it frees space into your SUMP. Its installation is of childlike simplicity: attach the sensor, connect the pump, and your Aquarium is secure. The included DC pump is silent and robust, ideal for intensive daily use.
| Feature | Detail |
|---|---|
| Mark | D&D (The Aquarium Solution) |
| Product type | Osmolator / ATO (Auto Top-Off) |
| Sensor | Smart Double Optics |
| Pump | DC pump included |
| Security | Visual alarm and Fail-Safe protection |
| Installation | Plug & Play (easy and fast) |
💡 The Recifart Council: For optimum reliability, be sure to clean the optical sensor lens once a month with a soft cloth. This avoids the accumulation of biofilm that could ultimately distort optical readings.
This system is distinguished by its dual optical sensor. Unlike mechanical float models, it has no moving parts, eliminating the risk of salt locking or snails, providing superior safety.
Yes, the AUTO Top-up compact has built-in integrated-security integrated protection ("Fail-Safe") and a visual alarm to alert you immediately in the event of an anomaly.
Not at all. It is a "plug & play" system designed to be ultra compact and easy to install. It adapts perfectly to aquariums with little space thanks to its reduced dimensions.
Yes, the kit is complete. It includes the intelligent sensor, the control unit and the DC pump (DC) required for the transfer of osmosis water.





Très bon et compact .nikel





Nickel, permet de gérer mon niveau d eau de l’ aquarium au niveau de ma pompe de remontée dans la décante . Je recommande





J'utilisais précédemment un Refill System easy qui a duré 1.5 an. La remise à niveau du Refiill system était temporisée et pour mon nano c'était pas l'idéal (trop d'eau osmosée = variation importante de densité). Celui-ci compense beaucoup plus souvent et par petite quantité. Le capteur détecte un manque, il action la pompe et dès que le capteur détecte de nouveau l'eau, il coupe la pompe. Soit pour mon nano de 60l la remise à niveau dure 2 à 3s. Il possède en plus un capteur haut de sécurité. Je conseille ce modèle surtout pour un nano.





En eau depuis quelques jours et fait le job. Très facile à installer. Livraison rapide et sans problèmes.

The D&D Compact Auto Top-Up redefines the management of the water level in Aquarium. This intelligent filling unit combines minimalist design with advanced technology. Thanks to its dual optical sensor without moving parts, it offers unparalleled reliability to secure your reef system.




Compact auto top-up
Osmolateur très facile à installer, performant et silencieux. Je recommande.