new live sand

i bought new live sand and thought the purpose of this was so the sand dont go threw a cycle? but it is starting to get brown on top ever so slightly
 
All new tanks and sand will go through a cycle the good part about the live sand is that it helps minimize the cycle.
 
It will still do a little cycling. You need bacteria to build up in the new sand as well as the on parts of the glass, and throughout the plumbing.
Especially since you just added new water to the system.
 
That can help. Take a couple cups from the main tank, and swirl it into the new tank. You don't need to take any from the prop tank, unless you just feel like it. Keep in mind, new lighting will also cause algae blooms.
 
What kind of bulb is it? Par can sometimes remain the same, but the spectrum can go wayyyy off depending on the type of bulb and the age.
 
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