The Night before adding fish to 55 Gallon

I just did a 90% water change on the aquarium. Before the change the pH read 7.8 and the nitrite and ammonia levels were at 0. After the water change, the pH was the same, and I tested the GH which was 6 degrees GH. I think that is a little on the low side for rift lake cichlids, but I may be able to bring it up with the coral that I have added to the filter. I also added 1 teaspoon of baking power and will add more in the morning if the GH seems too low still.

So, I think all in all the tank is ready for some fish. I plan to head up to Uncle Ned's Fish Factory in Millis, MA around 11:00 AM tomorrow. My son and possibly my wife will join me. Can't wait to finally have a tank going again!!