Ok... I have a couple of questions....
Did you use any live sand when put it together?
Did you use a plenum for the sand bed?
From what I have read, Correct me if I am wrong... You started your tank with sand/live rock/ dead rock and thats it. Well in order to cycle a tank you need some kind of fish in there, damsls are usually the starter fish. LiveRock is to help break down the wastes created by the damsels. It normally takes 4-6 weeks to cycle a tank. I would find a friend who has an established tank and take some of their sand to "seed" the tank. If you didn't use live sand, it's going to a very long time for it to become active enough for a 135g tank. After 4 weeks, take a sample of your water to the LFS
and have someone who knows about saltwater test it to make sure its ok, If it is not optimal, I wouldn't start stocking it until it was. Saltwater critters can be very expensive and I would hate to see you lose them over not being patient.
A plenum would have jump started the whole system, and they are very simple to make... It works like and undergravel filter, but its for sand.
If you have any questions, my email is email@example.com
, I saw this post and I had to chime in, but I had to register here to do so.
For those of you who are wondering about me.... I have been at this for going on 13yrs. I have read just about every book I could on this before I started. I am now a coral farmer so to speak. I raise captive zoanthids/palys/various leather corals.