HMS Tank Mount Rail

For use with AI HMS 2-ARM, and HMS Hanging Kit. (sold separately).*Fully compatible with all models and versions of the Hydra LED lights* Selecting the right HMS Multi Light Rail- Add 1.5" to your aquarium's overall length and match with the closest size that is longer than your aquarium. Example: If you have a 35.5" tank, add 1.5" to that length, giving you 37" total. The 37.5" HMS track would be the correct choice. Aquariums up to 24" -  25.5" HMS Rail Aquariums 25" to 36" - 37.5 HMS Rail Aquariums 37" to 48" - 49.5 HMS Rail Aquariums 49" to 60" - 61.5 HMS Rail Aquariums 61" to 72" - 73.5 HMS Rail