The Best Auto Top Off Devices For Saltwater Aquariums – Reef Builders Gear Guide

Salinity is one of the most important parameters to maintain in a saltwater aquarium. Throughout the day water evaporates from your tank, but it’s only the freshwater that evaporates, and the salt is left behind. To maintain proper salinity you…

Aqua Medic Refill Fix Nano ATO

Refill Fix is a new low tech device from Aqua Medic that is ‘designed’ to provide a small amount of make up water lost due to evaporation. We would only loosely describe the Aqua Medic Refill Fix as being designed…

Reef Factory has a Bold Vision for the Aquarium Internet of Things

Reef Factory is a brand new company out of Poland with a very ambitious vision for monitoring the modern reef aquarium. The catalog of Reef Factory devices includes a broad assortment of focused sensors and controllers to keep reef aquarists…

EHEIM Waterrefill Uses Completely External Water Sensor

The Eheim WaterRefill is a boxy looking Auto Top Off kit which could be forgiven for appearing like just another ATO, but it’s actually using a relatively new approach to sensing water level in aquariums. As far as we can tell,…

No sump? Try the XP Aqua Sumpless ATO

If you have a tank without a sump or filtration chamber (like in an all-in-one) and you’re looking for a way to take advantage of automatic water top offs, check out the XP Aqua Sumpless ATO. The design uses the…

EasyTank Is an ATO For Tiny & Nano Reefs

If you’ve never heard of a ‘glug jug’ then you are lucky to be experiencing reef tanks in our current golden age. But back in the olden days, well before there were any top off devices besides mechanical float valves,…

Elos America tabs Bashsea to deliver life-support systems

Two of our favorite companies — Elos and Bashsea Aquatics — are teaming up to deliver a pretty incredible complete aquariums system. Elos America has tabbed Bashea to build and co-brand the life support systems for their line aquariums.  The…

Revisiting the next gen Wavereef Auto-Fill ATO

Wavereef introduced its first generation Auto-Fill automatic top off (ATO) system almost 20 years ago and that design stood the test of time. But with recent advances and technology for magnetic support brackets, Wavereef starting shipping its next generation ATO…

Neptune Systems Auto Top Off Kit Now Available

The new Auto Top Off Kit from Neptune Systems has to be one of the most comprehensive evaporation countermeasures ever devised for the aquarium hobby. There’s been a ton of different auto top off solutions offered to the aquarium hobby in…

Saltwater Aquarium Maintenance: Topping Off Your Tank With Freshwater

Aquarium Maintenance: Topping Off  When water evaporates from your saltwater aquarium, only the fresh water evaporates, and the salt is left behind. In order to maintain a consistent salinity level, we must top off our tanks with fresh water. There are two ways…