Live rock cycle ?

[mikemc75]

When doing a new tank live rock only cycle. Should lights be on or off ?
(2. Led fixture ) 240 watts.

[Bectan01]

Keep your lights off it will reduce the amount of algae - you should also add an ammonia source to cycle the tank properly, just the die off from the live rock usually doesn't produce that much ammonia.

[melosu58]

I agree. Lights are not needed during the cycle.

[mikemc75]

If I use raw shrimp. How long should I keep it in the tank ???