stargazer Posted November 13, 2007 Report Share Posted November 13, 2007 Hi everyone my tank heater is acting up it varies by abt 10 deg f. . So it's time to get a new one, I've got a 100w in tank now 30gal apx 36 x 24x 18 inches shoul I get a bigger heater? Also tank is by an outside wall Quote Link to comment Share on other sites More sharing options...
HaNs Posted November 13, 2007 Report Share Posted November 13, 2007 I use 1.5w per L for heating Quote Link to comment Share on other sites More sharing options...
OscarBoy Posted November 13, 2007 Report Share Posted November 13, 2007 oh so thats how u work it out ive always wondered as well lol Quote Link to comment Share on other sites More sharing options...
stargazer Posted November 13, 2007 Author Report Share Posted November 13, 2007 thanks HaNs that means a 200w heater should be ok I thought the 100w was a little too small for the job Quote Link to comment Share on other sites More sharing options...
Discusguru Posted November 13, 2007 Report Share Posted November 13, 2007 for colder areas use 2 watts per ltr water. ron Quote Link to comment Share on other sites More sharing options...
snookie Posted November 13, 2007 Report Share Posted November 13, 2007 use 2 100 w heaters one for each side of tank 8) Quote Link to comment Share on other sites More sharing options...
Dixon1990 Posted November 13, 2007 Report Share Posted November 13, 2007 My tank i need to setup is 96cmWx 61cmH x 45cmD would 1 300W do? or 2 200Ws? Quote Link to comment Share on other sites More sharing options...
Discusguru Posted November 13, 2007 Report Share Posted November 13, 2007 One 250-300watt will do. Quote Link to comment Share on other sites More sharing options...
OscarBoy Posted November 13, 2007 Report Share Posted November 13, 2007 is 1 300watt heater enough 4 a 325l tank on saturday the room temp was 30 degres Quote Link to comment Share on other sites More sharing options...
alanmin4304 Posted November 13, 2007 Report Share Posted November 13, 2007 Yes. It is more about the lowest room temperature. Quote Link to comment Share on other sites More sharing options...
OscarBoy Posted November 13, 2007 Report Share Posted November 13, 2007 but would the tank get 2hot being in the room at that tempreture Quote Link to comment Share on other sites More sharing options...
alanmin4304 Posted November 13, 2007 Report Share Posted November 13, 2007 The thermostat will cut the heater off when it reaches the temperature it is set to. If the thermostat is set for 25 and the room is 30 then the tank will rise to 30 as the heater will cut out but the room will continue to warm the tank. The heater will not cool the tank. Quote Link to comment Share on other sites More sharing options...
jn Posted November 14, 2007 Report Share Posted November 14, 2007 Tanks can get too hot in the summer.. depending on what type of fish you keep this may or may nto be a problem.. I think with most tropical fish it doesn't matter too much. Coldwater fish can get a bit stressed maybe(??) the main problem with the water being too hot is that the oxygen levels drop. So if you tank is really hot and your fish are gasping its probably due to lack of oxygen and cooling it or adding an airstone will help. Quote Link to comment Share on other sites More sharing options...
newfish Posted November 14, 2007 Report Share Posted November 14, 2007 Tanks can get too hot in the summer.. depending on what type of fish you keep this may or may nto be a problem.. I think with most tropical fish it doesn't matter too much. Coldwater fish can get a bit stressed maybe(??) the main problem with the water being too hot is that the oxygen levels drop. So if you tank is really hot and your fish are gasping its probably due to lack of oxygen and cooling it or adding an airstone will help. Boy thats something I'm going to have to watch!!!!!!!!!!!!!!! Better get a better air pump I think! :-? Quote Link to comment Share on other sites More sharing options...
jn Posted November 14, 2007 Report Share Posted November 14, 2007 Don't panic newfish There are lots of threads here about hot tanks in the summer. It could be as simple as floating a bottle of frozen water in the tank if it does get real hot or even leaving the lights off during the day on hot days cause they add to the heat a little.. or leaving a cover open with some air flowing past. Quote Link to comment Share on other sites More sharing options...
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