I think increasing the temp woud be pushing it actually i wouldnt even ynk about putting the fish in anything higher than that. Add more salt but as it says in the video go slowly and dissolve before you put it in with the aquarium water. I did 12.5 teaspoons every hour, four times on the first day. Thr next day i did 12.5 every 4or 5 hours, 4 times. I have a 55 so that would be a total of 100 teaspoons. About Two teaspoons every gallon. I even have rummy nose tetras which i would think are a little more sensative than the glow tetras. The key is to go SLOW. after your first two or three days of dosage. Leave the tank as it is for 7 days. If you need to do a water change make sure u know how much water your taking out and replace the salt. So if u gake out 5 gallons of water. Dissolve 10 teaspoons of salt into the new water befor pouringit in. On the 7th day when u see that there is no more ich only do water changes of a max 10% because it will most definitely stun and kill your fish if you do the regular 40-60%. I did 10% every day 8-9 times then waited a week and did my normal water change.