In the case of chloramine,
\(f_{res}=0.122\cfrac{c}{BL}\)
\(BL=1.79\,\dot{A}\)
\(f_{res}=0.122*\cfrac{299792458}{1.79}*10^{10}\)
\(\cfrac{f_{res}}{10^{15}}=204.328\, Hz\)
It is probably safer just to add vitamin C or sodium thiosulfate, nonetheless,
Chloramine NCl Bond 204-328 Hz
It is likely that ammonia, chlorine, hypochlorite and ammonium are products of chloramine decomposition using resonance frequency.
The water clears up! Possibly chloramine clouds up the plastic. Maybe, this is the reason why acrylic does not look clearer than glass under water. A white layer stains acrylic on the water side containing chloramine. Removing chloramine, clears up the plastic.
Lucky me...
"Disinfecting oxidizing chemicals in potable water supplies, such as chlorine and chloramine, reacted with the acetal fittings, causing them to scale and flake and to become brittle. Microfractures would result, and the basic structural integrity of the fittings would fail and cause leaks." The Plastic Piping Industry in North America. Thomas Walsh, in Applied Plastics Engineering Handbook (Second Edition), 2017
The whitish layer on acrylic tank is due to chloramine and chlorine. Microfractures! So, remove chloramine and chlorine from tap water first, before adding to the acrylic tank.
Apply 204.328 Hz and see if the old acrylic tank clears up.
Good luck.