Hi there, I am new to this forum so please be patient as I may ask some stupid questions. Anyway, I have been a breeder hobbyist of freshwater fish for a long time, and now have just changed over to saltwater. Since it has been about 5 years since my last salt tank, I had a question for you all, so here goes: When can I put my different sand sifters into my newly set up aquarium and what are your recommendations for them? I have a 30 gallon Oceanic Cube with a mix of Live Sand (2 different kinds) and Haitian Live Rock. Please let me know, thanks.