What should you do if your water has a fishy smell?
As soon as I notice a different smell in the pool, it helps to add a focculant to the skimmer and after 24 -36 hours backwash the filter. Shocking the pool at this time should control the odor.
Soap and water. In difficult cases, you may need a vinegar & water douche. If it smells like rotten fish you have a infection and needs meds. The normal smell of a vagina is kinda fishy and you should never douche. Douching disrupts the natural flora of the vagina and makes it easier to get infections. The vagina is selfcleaning hence the discharge.
To most accurately answer your question, more information is needed. It is nothing unusual for a perfectly healthy salt water tank to smell fishy. However, if you have things in the water that are actively dying, that would also explain the smell. Do regular water changes and as long as things are alive and well and the nitrate levels are in order, you're in good shape.
Should not have a strong fishy odor. The flora balance in the VAGINA changes throughout the monthly cycle, and After intercourse can create a stronger smell. But if you are having very foul fishy smell See your doctor! STD's can cause foul discharge. Also look up "BV", very common, not an STD but can cause fishy odor.