Hi Everyone, I'm so glad to have found this forum. I have a tendency to ramble, but will give an honest attempt to get to the point (ha). After several years of not having an aquarium, I've finally been able to set a new one up. All previous have been cycled old school with hardy fish. I've decided to go the fishless cycle with ammonia this time. Just a couple ?s, pls. My tank is 175 gallons, 48L, 24W, and 30H. I'm in the process now of setting up my substrate now. I'm trying another first, sand. This will be a freshwater tank. I'm using Dr.Tim's ammonia because I was having a hard time finding store bought ammonia without any additives. I'm a complete newbie at this, but I have been reading and trying to educate diligently. I purchased aquarium bacteria. I keep mixed reviews about using it. Any suggestions would be SO greatly appreciated. I'm trying to be patient, but I can't wait to get this tank cycled! Thank you.