Is a 300 watt okay for 40 gallon tank?
1731914
Well it will certainly work but it's overkill. a 40 gallon should only require a 100 - 150 watt model. This one is cheaper so you might as well. That way if you ever upgrade your tank you already have a larger heater.
1731915
Aquarium Size...10 gal - 50W, 15 gal -75W, 20 gal - 75W - 100W, 30 gal - 100W - 150W40 gal150W - 175W, 55 gal - 175W - 250W, 65 gal - 200W - 250W, 75 ga l- 250W - 300W100 gal - 300W - 400W
1731916
I used mine for a 55 gallon tank and it heated it perfectly until a month later and it stopped producing heat
1731917
Yes it will , I am using the same one on a 55 gallon tank and it works great !
1337613
I got the 300 watt for my 55 gal. seems to do fine. I rather have a higher watt and turn it down lower. Besides after they get old and don't work as well a higher watt seems to do better. I think a 250 would do the job for a 55 gal
1409128
There is a chart on K&H;'s web site that you can use to fugure out what size watts you need for your pond and area.Good luck.
687412
I am running mine on a 120 Gal. tank which is also fully planted with no problem. 2 350's on a 75 Gal. would be an overkill in my opinion.
1726127
Twin 30 or 40 gal tanks with an automatic change-over regulator would be a pretty good working arrangement. Keep in mind, the bigger the tanks the heavier they are when you take them in to get filled. ;-)
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.
564768
I use a 50 watt with automatic temperature control. If goldfish do not need heater.
2106615
yes this would work well for a 40 gallon aquarium, the cascade is 1000 recommended for aquariums up t o 100 gallons. so if you have a 40 gallon i would recommend the cascade 700 this will work great and it will save you money.
2196234
Yes, it should be good for a 40 gallon tank. I have a 29 gallon with a Whisper 30-60, but I have other accessories.
344740
I have a 225 gallon tank and I run two 150 watt one on each side and my temp. Stay. At 76
1356303
I don't recommend 30 Gallons tank. I bought this for 10 gallon tank. It was not enough.And I found a problem. Connection is weak.(from light parts to AC adaptor)
1991068
I would (not) use any larger wattage then the light label says and most are 300 watt
2106617
I think that this would be a bit much for a 40 gallon tank. I would go for a lesser model. it works well on my 55 gallon tank but I would not go lower than that
977430
These heaters are more efficient, which means you need less wattage than other heaters. So for 36 gallon glass tank a 100 or 125 watt heater will be perfect. Do not think more wattage is better it is not, to much wattage will throw off the nice balance that a properly matched wattage to gallon ratio will give you.Not to mention the more wattage the longer and bigger size heater.
1202134
If it is a 40 breeder you would use the 36" fixture. But in either case, yes. These lights are fine for a coral tank with the 3 color lights and wattage you would be generally fine.
1560139
No. On average, a heated tank needs about 5 watts of heat per gallon, but bettas are tropical so 7.5 should be fine.
1683083
The 10 watt is too much for your tank. I had mine in a 3 gal and it was too warm.