my temp is ranging from 25 to 27 is this ok i think my heater is messed up. just added more salt i think my tank is 120 liters because i have used all my salt and it said it can do up to 120L (4Kg). thanks razer i think at the end of this journal i wil say what is good and what is bad about the tank and all the other equipment i have used so people can learn about all the things i have used and what i have kept. also i will give people links to web sites wich will help people.