zinc problem

i think one of my plants is lacking zinc, should the soil be flushed, how long before reintroducing fertilizer, they are 2 weeks into flower....is there a specific fetrilizer, to use, or foliar spray etc?

Its pretty rare that plants have zinc deficiencies. If you do have a nute deficiency, flushing will only exasperate the situation because it will remove all the nutes. If you are feeding your plants the same nutes and they are grown in the same meduim, then its pretty unlikly that one plant will have a nute deficiency and the others wont, unless they are different strains, but even then, seems odd. More than likely it has a cold. A little TLC should fix it in a bit.