It will heat a lot 2g tank?
1333910
The bulb base is extremely hot, it's more of a safety concern than a heating issue for a tank, but at 2gal , I wouldn't be surprised if it heats your tank.
1333911
I think what you are asking is; Will the CL26BK over heat a two gallon tank? Since a properly placed lamp sits above the tank and not on directly on the top, there shouldn't be much of a heat problem. I would say though that 26 watts of light might be a lot for such a small tank. The 26 watt bulb that comes with the lamp assembly seems to be poor of lifespan, I've gone though several of them and none have lasted more than two months. I have since switched to another brand of aquarium bulb (20 watt) that fits this lamp and have had no trouble so far. In the end I would say the lamp is good, the bulb that comes with it not so much. I would suggest you also look into some of the new LED lamp assemblies for small tanks.
1333912
Might be a little big for a 2g tank and powerful, id suggest a robot led lamp or something smaller as this is a 24w lamp and quite powerful to penetrate deep water.
334456
It should heat up your tank within a couple hours, maybe you have a faulty heater :(
1645492
Works good in my 2.5 gal betta tanks, I leave in on all the time - but my lights throw no heat so it is ok.....when I had different bulbs that got warm I would unplug heater for a while. It is a great heater for when the house is cool.
1928961
Two choices. Either two 100 w heaters at opposite sides of the tank or a 200w should work. These heaters are powerful and heat better than other brands of the same wattage.
1060999
Maybe a little, but probably not much. You'll experience a lot of heat loss where the water isn't covered. I actually wish I had purchased a bigger one because of this.
970806
I would only use this on a large tank like 55 g or more because it's kind of hot
650596
1 heater is perfect cause it is a small tank. More then one would just crowd the space
1041248
I can't say for sure, but certainly not enough that you notice it on a household light bill. The tank is pretty well insulated, considering it's holding 200 degree water and only feels slightly warm.
344854
This Unit will heat a 800 ft2 space just fine. I do this professionally, and anyone who says you need a 2 ton is an armchair tech. Unless you live way north or have no insulation at all. And yes, the more centrally located the better.
1497045
Greater heating power for larger masses of water. 200 is probably fine for up to 100 gallon.
280540
I don't see why it would not work. The tank is only 2.6gal so keep that in mind. It delivers 3.8 cfm @ 40psi and 3.3 cfm @ 90psi. I have to believe your application fits somewhere in the middle of these.
1683083
The 10 watt is too much for your tank. I had mine in a 3 gal and it was too warm.
1652094
Well, this would heat it. These are powerful heaters. I think 50 watts would be overkill (I am using it on my 8 gallon and I keep it pretty low). Plus, Jagers are larger heaters, not small at all. the 50w is 9" long and I believe it is the smallest. The 300w (I use them on my large systems) are about 20" long. For a 2.5 gallon I would probably get one of those small unbreakable heaters.
1503046
Yes. The screen can handle a LOT of heat, but the plastic edge of my tank warped from heat.
1774691
It'll heat a 5 gallon tank just fine. Be sure to purchase a thermostat, if you don't have one already.
1849
Yes, definitely. It really doesn't get hot, just stays warm. I use it in a 1 gallon acrylic tank.
477415
This *might* work for 2 gallons, but is listed for 1.5, which hopefully would work. I tried this yesterday to heat a 2 gallon tank and it could not get it over 76 degrees, which is not warm enough for a betta, which is what this heater is supposed to be for. I am sticking this one in a closet and using a 50W PetCo brand heater that is meant for 2-10 gallon tanks and has an adjustable temperature.