Since you are still in the cycling process, (if you mean fish less cycle) you have time before adding fish, why not give it time to settle?
Most tanks take between 6 to 8 weeks to cycle, and the sand should settle by that time (the dust may even help by keeping you from jumping the gun and adding fish too early).
Keep your filters running, and they will remove some of the dust in the mechanical media.
Geophagines can be quite sensitive to water quality, so adding them too early (before the cycle is done) could be deadly.
The biggest problem I have with play sand, is because it fine, and light weight, it can get into pulled impeller chambers and score the filter impellers, ruining them. Again especially with Geophagines that dig and spit, this often allows grains of fine sand to get sucked up in the filters and into the volute where they eat away the impeller shaft.

Above an impeller ruined after being eaten away by fine sand particles,.
This happened when I was new to sand and also tried play sand.
You could however; add a layer of heavier Pool Filter sand on top of the play sand. It is not so easily stirred up.