You need to get that water temp down to 70 or below. If your roots are real bad you can cut them off just below water level and take out bad stuff. H2O2 will help alot. The root cut back will only slow you down a few days to a week. AC or a froze plastic drink bottle is what you need. Look up LOC NAR1958. Back last year I cut roots on one just to see what happens. Check it out. Weedhound has got your back. Get a cheap fish tank thermometer to check it.