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Top rail in all sizing increments from 17" to 72" (choose size above)
acclimatisation
minimize light spillage
Professional 15x strength powerful live tank starter nitrifying bioculture
HYDROS Triple Optical ATO Kit Hidden Top rail in all sizingCoralVue HYDROS Triple Optical Auto Top Off (ATO) Kit Why purchase a separate and expensive auto top off system when HYDROS can do the job for you? The HYDROS Auto Top Off Kit comes with everything you need to use your HYDROS device (like the Control X2 or Control X4) as an ATO system. This kit features a new Triple water level sensor for added security. The HYDROS Auto Top Off Kit Includes: HYDROS Triple Water Level Sensor (plugs into HYDROS Sense
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