Never have I had a problem using it. I usually mix the Epsom salts to liquid add the first dose over a day say divide in 3 parts. I have done in an hour though same divide in 4 parts add one part every 15 min. for a very serious case when I felt I could lose a fish.
If you are going to be traveling and away you can use the liquid concentrate as I mentioned before, and be fine.
I have used the one tablespoon per gallon as a maintenance treatment and even more (built up to 3T p/G) for 2-3 weeks for a very ill, like on deaths door type thing and then started reducing it back to the 1T and then like in one case the fish just lived out his time with (1T) Epsom salts for an additional ~ year because he couldn't stay well.
Otherwise normally just reduce it after treatment and an additional couple weeks till you have all normal tap water (always use treatment for tap water of course).
You might want to give this website to your fish care taker, who can create a membership if you would feel comfortable and then they can look for this thread (you tell them the info) so if there is an issue we could possibly help.
Sometimes you just have to know that someone else will do their best and it is possible the Betta could take a turn for the worse but it seems you are doing a lot for him and he is improving.
If you are going to be traveling and away you can use the liquid concentrate as I mentioned before, and be fine.
I have used the one tablespoon per gallon as a maintenance treatment and even more (built up to 3T p/G) for 2-3 weeks for a very ill, like on deaths door type thing and then started reducing it back to the 1T and then like in one case the fish just lived out his time with (1T) Epsom salts for an additional ~ year because he couldn't stay well.
Otherwise normally just reduce it after treatment and an additional couple weeks till you have all normal tap water (always use treatment for tap water of course).
You might want to give this website to your fish care taker, who can create a membership if you would feel comfortable and then they can look for this thread (you tell them the info) so if there is an issue we could possibly help.
Sometimes you just have to know that someone else will do their best and it is possible the Betta could take a turn for the worse but it seems you are doing a lot for him and he is improving.