I can't give you the best answer, you might want to wait for someone else with more experience, but In my opinion... it's better to be safe then sorry. If your trying to cycle it, i would use the shrimp tech.. You put a dead shrimp (i believe its a dead shrimp) into the tank for a while and let the ammonia spike. I would assume you take it out after the ammonia spikes to a high point. Then the tank will cycle. Not sure if you want to be hasty and start adding fish or corals and run the risk of losing them because your tank cant handle the biological load. But, again, you might want to wait for a better answer.