if it helps at all i had stumpy in salt for the duration of the problem. its the concentration of the salt that matters, not just having some in the system, so once the salt concentration drops below xxx ( i cant remember what i used per liter but i posted it on the stumpy thread ) you arnt really doing anything.
if you put the salt in and keep the drip on without topping up the salt then the concentration that is requred will be diluted quite fast and stop working because its below the required concentration.
with that in mind i would say you have done more of a salt dip than a full treatment. that said, i think your ray will probably be just as well without the salt as long as the water is good. ( adding salt make you feel better though, i know it did me

) .
its also worth noting that i increased the salt dosage in incriminents and did not get upto the full dosage all at once ( which seems like quite alot at first ).
good luck but im sure he will be fine on the drip system even without the salt. its probably better to keep things the same for the ray rather than change the water chemistry (not that i think adding salt affects even poorly rays if its done slowly) . stumpys tail fell off much quicker than i expected and there are lots of joints in the tail as its so flexible so that will hopefully help it drop off and heal rather than be a dead appendage

( i wish id realised it would drop off so quick when i had this problem with stumpy but we learn all the time ) .
good luck
