Doubt it. Unless you started it out with live rock from another established system. We all would also need more info on how you started to cycle the tank?
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I'm not going to say it's impossible, but I'd keep an eye out on the parameters for at least another week or two. Invest in a good test kit for yourself, you'll need it.
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Invest in a Red Sea coral test kits. It is expensive but it's cheap insurance compare to the amount of cash we pour into our tank.lol
Are you running your regular light cycle during this time period?
U run light when cycling the tank? Anything in yet
Just added a couple green chromis on Sunday after I tested the water again and nitrate and nitrite were zero
I no longer have this tank took it down got bigger tank.. Every fish is different and although yours never turned on each other mine did and also beat up every other fish I put in therenevertheless, I used 3 chromis in my existing tank that I've had for about 6 month's. These guys never turned on each other, very active swimmer's and that helps other skittish fish to come out as well.