Tina/Darrin;4757054; said:yes but he is doing fine in the normal temps
Puffer is telling you that it will not do well for long in "normal" temperatures and needs cold water.
I stated it should be your last fish for two reasons.
1. You will have 4 large fish for a tank that size. You will be overloading the filtration and struggle to keep water quality high with more fish than you have. The fish also will most likely be stressed if there are too many of them(this also factors into number 2). Niger Triggers get very large and long term need an even bigger tank than an 85 gallon. This is the main reason you should not stock anymore big fish. You could possibly add a small fish or two, but they MUST stay small through adulthood.
2. Also, Clarkiis and Niger Triggers are aggressive and other fish that get added to that small of a tank will probably get harassed because there isn't enough territorial space.
I know it may seem like you have a very large tank, but when placing large fish in a small space we must be careful. I have a 210 gallon tank and when my stocking is all said and done I will have 4 fish that get over 6 inches and a school of Chromis and that is it. This should give you an idea of a long term strategy that will lead to success. Putting in more fish than that makes it significantly harder to maintain.