1000g Water change tank heater ideas

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thefredpit

Goliath Tigerfish
MFK Member
Jul 28, 2012
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We have an 80" tall 1000g storage tank at our store that we use for water changes on the 240 tank store. With the weather changing we have been running into the issue of the water coming from the tank is 68-70 degrees which is an issue when doing a 50% water change on a tank at 82 degrees. I had bought an inkbird wifi controller and a 800w titanium heater but both the probe wire length and power cord of the heater were not long enough to reach the bottom of the 80" tall tank. I have been having a surprisingly difficult time finding a heater or controller with long enough cords. I tried to find pond heaters but only found de-icers. I also need a solution that will heat the water quickly because we will go through 1000-2000g of water most days
 
Some industrial Screw Plug Immersion Heaters like the first pic or a Circulation Booster Heater (comes with thermostat) like the second pic would work.

Look them up at Grainger or better yet, call them and tell them what you’re trying to do and they should help you out.

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I am just mentioning this don’t even know if it would be possible or probable. What about an inline hot water heater used for residential houses? You would have hot water on demand. You would need to see is it would go low enough.
 
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I used several storage tanks for years to allow my tap water to warm up to correct temperatures before adding to my tanks, but I am on a well and no other preparation is needed. I had heaters in the storage tanks (standard aquarium heaters as the tanks are only about 3 feet deep), but usually these were turned off as the ambient temperature in the crawlspace where the tanks sit was sufficient for my purposes.

I assume you are on municipal water which you wish to pre-treat in one or more ways before using? Could you possibly use an on-demand heater plumbed into the line immedately after it leaves the storage tank? You could do whatever other treatments you now do in the tank, and then only heat the water as it is being used. This might also save you some money on heating costs, since you are not maintaining all that water at correct temperatures constantly...although at the rate you use the water, you likely won't save as much as a typical consumer who only draws on the change water every few days.
 
* Doing a 50% water change would only drop the fish tank temperature from 82 to 75 degrees (or less) which is fine. If you have substrate in the tank, the thermal mass would likely retain 80 degrees.

* If your using so much water daily, install a float so the water storage tank is always full.

* You could use waterproof heat cables (often used under reptile tanks) for length. You may need several to achieve 800 Watts. Or ask an electrician to re-wire your equipment to longer cables.
 
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