Possible continuous transition from fractional quantum Hall to stripe phase at <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>ν</mml:mi><mml:mi>e</mml:mi></mml:msub><mml:mo>=</mml:mo><mml:mn>7</mml:mn><mml:mo>/</mml:mo><mml:mn>3</mml:mn></mml:mrow></mml:math>

We study the phase diagram of $\nu_e=7/3$ state in $N=1$ Landau level presence band mass anisotropy. Using density matrix renormalization group on an infinite cylinder geometry, we find a continuous transition from topologically ordered Laughlin fractional quantum Hall to stripe with period approximately five and half magnetic lengths. The is driven by condensation magnetoroton mode which becomes gapless at critical point. interpret within composite-boson theory as onset order superfluid background, resulting roton going soft.