just tested my tropical fish tank water, here’s the readings, are they ok or bad?

NO3 - 100
NO2 - 0
GH - 6 D
KH - 0 D
PH - 6.8
Message me back with results on wether good readings or not, let me know how i can make the water better if it bad.my fish are angel x1, neon tetra, harlequin,and a golden chinese algae eater, all are swimming no sighn of disease and eating normal