75 gallon

My husband and I just set up our new 75 gallon tank, its freshwater and the water is as followed: Ph: 6.5-7 Gh: 30 Kh: 0 Nitrate: 0 Nitrite: 0 Our water is a steady 84, we have live plants, driftwood, and decorations. Our current was very hard at first but we did the bottle trick, cut the ends...