put salt and vinegar into the pond, this will remove the soap plus salt and vinegar go really well with fish
Vinegar.
I heard that vinegar and a toothbrush works best.
the best way to remove pimples is not to pop them, if you do small holes will appear.
I have never tried salt. But, the best thing to use to remove the odor of cat urine is white vinegar and water.
Salt &vinegar
I usually find vinegar is a good replacement for vinegar...
Vinegar is actually mostly water. It generally does not contain any salt.
Salt has a diluting effect on vinegar. When salt is mixed with vinegar, it lowers the acidity and reduces the sour taste. The salt also enhances the overall flavor, making the vinegar taste less acidic and more balanced.
The salt will dissolve in the vinegar, which is mostly water. However, a chemical reaction will also occur with the vinegar's acetic acid (CH3COOH) and the ions of sodium and chlorine from the salt, producing sodium acetate and a dilute solution of hydrochloric acid. The mixture can be used to clean pennies and remove mild rust from items. If you place a tarnished copper cent in vinegar, some of the tarnish will dissolve. However, if you then add salt, the hydrochloric acid formed will rapidly remove the tarnish from the coin, leaving bare metal. (Not recommended on valuable coins)
Vinegar is a polar solvent and salt is a polar solute. Therefore vinegar dissolves salt. Plus, salt's are very soluable and will almost always completely disassociate when added to water(you vinegar isn't 100% vinegar, there's also lots of plain water than salt can dissolve in.)
Apple vinegar is used by many people to get rid of pimples. It may not work for everyone tho.