Cant get my temp to 86...

[CleverBs]

I have ich and have been trying to get my temp up to 86 and it wont seem to get past 84

I have a 75 gallon planted tank, I have 2x 300 watt fluval heaters in it. I would think that would be more then enough. Should I put a 3rd 300 watt heater in the tank because I have another 300 watt in a tank thats just cycling with no fish in it.

 

[CleverBs]

put the 3rd heater in before I went to work. set all 3 to 86

 

[chevy_guy2002]

You dont want to heat the tank up quickly. You should slowly heat it up over several days.

 

[CleverBs]

Iv read a degree over 2 hours is just fine and my temp went from 82-84 in like 15 hours it should be fine my tank will only be 4 degrees warmer.