Newbie 75 gallon

[Frogger]

Cyno is a bacteria, revive (non-selective) kills/stresses only some members of the animal kingdom. Only a bactericide (non selective) kills bacteria (chemicals are only a last resort). All tanks have cyno, it usually only rears its ugly head when things are not right.

Young tanks have a tendency to go through algae, diatom, cyno and often dyno outbreaks. Unfortunately strong lighting in a young tank on bare rocks compounds the problem. The best answer for the problem is patience, don't rush it, good maintenance practices, water movement and reduce lighting if possible.

Most algae can be controlled by putting your tank inhabitants to work, or only adding tank inhabitants that will work for you. Everything needs to have a job.
For the most part good bacteria control bad bacteria. Look at ways of increasing the biodiversity of your tank and encouraging the good bacteria/algae to grow.