Robotics Light Rail

[marinelife]

Anyone using one, I am wondering how they are and if they work good, does it just go across from on side to the other once a day

http://www.drsfostersmith.com/Product/Prod_Display.cfm?pcatid=13974&N=2004+113352

 

[HippieSmell]

People with large tanks tend to use them more, but I'll be getting one for my 120. And no, they travel faster than once across per day, more like 1-2 feet per minute.

 

[marinelife]

ok I was wondering, 1-2 feet per minute would be fast I think would be cooler is it just moved over the tank as the sun would do over the ocean. How noisy are they?