I bought a 60gallon tank.. will this 250W heater over heat my tank ??
1319934
No. As long as the temperature is adjusted properly, it should be fine. I use it in a 55 gallon tank. Be sure to place it where the water circulates.
1319935
No, it has a dial to set the correct temperature. I have a 45 gallon and it is working fine.
1249214
I have it on my 6 gallon fluval edge so it will be fine. I love this heater because it is the only heater that has build in temperature sensor and you can even set desired temperature. Once the sensor detect the tank temperature match the temperature you set, it will stop heat the water. Most mini heater will continue to heat the tank which result over heat the tank and kill fish.
843731
I wouldn't suggest it as it is only 7.5 watts and will not raise temps. You should use a 75-150 watt heater if you have tropical fish. This heater at best would likely only take the chill off of just a 5 gallon tank. Not enough to really help.
1536125
Do some research, but the recommendation fr a 50-75w is ridiculously low. The minimum in a 30g tank would be 100 watts if you're just looking at a few degrees above ambient temperature. If you want to maintain more than five degrees above, then you should go with a 150 watts. Although it is more expensive to do, some people with larger tanks start looking at two smaller heaters, so maybe a 100 on one side and a 50 on the other, or a pair of 100s, so that your tank holds a reasonable temp if one fails and the wider spread of heating can help things even out better.
312029
There's multiple sizes selectable here. I prefer yo run two undersized heaters so if the thermostat goes bad i in one it won't cook the fish. For a 39 gallon I'd think you'd want like two 100w heaters.
1785137
Too much heat for tank size...I would get a bigger tank for tha betterment of the fish.
1734436
It probably won't even fit, but even if it does it would overheat one gallon before the thermostat could shut it off. A 25 watt heater is really meant for a 5 gallon tank or better (3-5 watts per gallon is the general rule). Small volumes of water usually don't provide enough water circulation for heater thermostats to function properly.
2007391
I use this on a 40 gallon tank and it works very well. I believe that the correct size for 40 gallons is their 100Watt unit. I intentionally purchased an over-powered unit because my house occassionally drops to around 60 degrees F when winter weather is severe (like last year's winter). This unit maintained the tank at the set temperature throughout.
610255
Jerry I purchased mine for additional heat in my shop that is attached to my home , I also attached it to my 500 gal L.P. tank but you will need a regulator placed on that line , do not go direct from the tank with- out one !!! Note there is a slight smell , for the price it works great . any other questions contact me .
1819715
I have a reddy heater about same size and heats up my 2 stall w ceiling. Says 7 hrs on 20 lb tank.But has hi and low settings on.
1675130
Beware of your tank size. I use it at a 1.5Gal bowl under the gravel, room temp is 59F, with this heater, it heats up the water to 72F.
2007390
It's fine, I use mine in a 55 Gal so you have plenty even if you decide to go to a bigger tank. Enjoy these are the best heaters.
1891241
Possibly so I have a 300 watt and I have to turn the temperature down below what is recommended for my Oscar's in a125 gallon tank Or there could be something wrong with your heater :-)
1303775
Its a 200 watt for 50 gallons, so Id use a 200 watt. U could go up to 300 watts...but risk burning it out. I would go with the VA-200Q by ViaAqua. Type ViaAqua 200 watt aquarium heater into the search box and make sure u read any description of the heater..it should tell u that the heather is equiped for 50 gallons. Hope this helps u!
418181
Yes - it may take a little longer to bring tank up to temp than the suggested 300 watt - if the price difference between a 200 watt and 300 watt is large enough go for the 200 but keep in mind that when you run something longer it will wear out faster so take wear and tear into account when considering the price difference. Also a "strong" suggestion is to invest in a temp controller - you can order one from amazon or ebay for around $20 - I have owned inexpensive heaters and expensive ones and none of them keep very accurate water temps. Best $20 I ever spent on my tank was an independent temp controller. - Lerway 110V All-Purpose Temperature Controller+ Sensor 2 Relay Output Thermostat Stc-1000 Yes - it may take a little longer to bring tank up to temp than the suggested 300 watt - if the price difference between a 200 watt and 300 watt is large enough go for the 200 but keep in mind that when you run something longer it will wear out faster so take wear and tear into account when considering the price difference. Also a "strong" suggestion is to invest in a temp controller - you can order one from amazon or ebay for around $20 - I have owned inexpensive heaters and expensive ones and none of them keep very accurate water temps. Best $20 I ever spent on my tank was an... » Read More Yes - it may take a little longer to bring tank up to temp than the suggested 300 watt - if the price difference between a 200 watt and 300 watt is large enough go for the 200 but keep in mind that when you run something longer it will wear out faster so take wear and tear into account when considering the price difference. Also a "strong" suggestion is to invest in a temp controller - you can order one from amazon or ebay for around $20 - I have owned inexpensive heaters and expensive ones and none of them keep very accurate water temps. Best $20 I ever spent on my tank was an independent temp controller. - Lerway 110V All-Purpose Temperature Controller+ Sensor 2 Relay Output Thermostat Stc-1000 « Show Less
471111
It took mine under 15 minutes to heat my 2.6 gallon tank from 74 to 78 degrees. If I may, I would suggest that you check out a 50 watt heater, the 25 w is meant for 2 to 4 gallon tanks.
1928962
For a 125 gal. tank ,you should get the 300 watt, especially if its a glass tank . you can probably get by with the 250 watt size . these heaters are the best made, and keep the temperature near perfect. I don't recommend using two smaller heaters ,one is easier to set and maintain.