HI, WELCOME TO FISHLORE!
Right off the bat, I want you to know that I'm responding to your problem, not wanting to make you feel bad. Take it from someone who has been where you are today.......

I had 2 balas in a 55 before I got the big tank!
It is a good thing you have 3 bala sharks, they do best in a group like that, unfortunately, they need a MUCH bigger tank. For the irridescent shark, it has to be in a HUGE tank....read the profiles at the top of this page under "ARTICLES", fish profiles....
The balas should be in a 125 gallon tank or bigger, with a length of at least 72", the other might hold in that size tank for awhile, but will need something more like 300 gallons!
So My first suggestion is to get an
API Master
test kit for freshwater (liquid), and test ammonia,
nitrite, and
nitrate. Once you give us the readings for that we can help more. It sounds to me like the move may have disrupted your nitrogen cycle, and you need to be doing daily water changes until it is re established. Shawnie has it pegged, ammonia and nitrites in a fully cycled tank should read 0 and the nitrates will be up, but 110 would be really high, and you should do water changes until you have them down to UNDER 20. This can take lots of work, and gravel vacuuming! Good Luck....