The ugly phase usually kicks off about the 3rd or 4th month. IMO, one of the best ways to get through it is to keep a good N&P level/ ratio. Definitely don’t let P bottom out in a young tank with dry rock and sand. It will become a big mess, and feed all the ugly algae species and slimes that thrive in a low nutrient or zero nutrient environment. Also, make sure to get the major elements in check early on as this will help the overall stability of the system. The big 3…plus…element’s like Bromide, Boron, Potassium, Strontium…and if you can…get Iodine in there at 60-75 ug/L. It’s a really important trace element. Highly recommend Red Sea Blue bucket salt as most of these elements will fall into a decent range in a young system like this with biweekly 20% water changes. Then just add what’s low.