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yes that is true...some more pondering (pun intended) is in order
 
Its always going to be a bit of a compromise cause you need gas exchange to keep the fish happy which means you need some airflow across the surface water which will release humidity and cool the pond, unless the air is heated. I'm trying to figure out the best compromise for my indoor pond at the minute...

I'm not saying dont have an open wet dry, just try to figure out how much it will cool it compared to how much oxygen it will add. I think it will be too much though as to conserve heat you want an airflow where the water is deepest. My wet/dry is mostly closed but theres a big whole drilled at the top of the inlet pipe, just before it falls to suck in air. this does cool it but much less than a fully open system, and it gurgles a bit!
 
make a room for it. thats what I am doing I am making a corner of my basement a sealed room using clear vinyl.
 
:iagree:I am putting my 10 foot diameter kiddie pool in a room that is only 15 foot by 20 foot. This will lower the cost of heating the room, and help greatly with humidity. I will just buy a $40 space heater that uses 750 watts and wha-la. For humidity, just paint the entire room with a few coats of drylcok and buy a dehumidifier. I will not be covering my pond.
 
I think if I cover it humidity wont be a problem because the air inside will get saturated and exap will slow to a minimum and instead of building a room im building a box around the pool to hold in the heat. As long as I can get some air exchange in a efficient way im sure the Oxygen wont be a problem.

Has anyone even ever heard of a tank with moving water and good parameters that lost fish due to a lack of oxygen?
 
Fish Eat Fish;1546840; said:
Has anyone even ever heard of a tank with moving water and good parameters that lost fish due to a lack of oxygen?

idk but it may cause fish to be constantly gasping for air at the surface
 
I think though as long as there is some gas exhange (even very very small amounts) between the lid and the outside air it should be just fine right?
 
also once the pond is "sealed" and heat holding efficient...what is the most electically efficient system for heating a 300-1000 (still not sure how much I want to piss off my house mates :ROFL:) gallon pond. I know some people use water home heaters etc.
 
My aquariums are in an unheated basement, and of course they have covers that help keep in warmth. I oversize the submerssible heaters to account fo rthe larger temp differential.

IMO sealing off an area and heating it with a space heater will be very expensive (inefficient heating electrical cost and I would worry about the "safety" of a cheaply produced mass market space heater, which can cause a fire or just fail. I would do not want to risk burning down the house.

Below grade, constant temp of 55 deg F is common so it will only get so cold in the basement. If you have a walk-out, then there should be insulation on the timber frame wall side. If you just have a bulkhead exit, get a steel insulated door installed it's economical.

You want to enjoy access to and viewing of yoour pond, so I would not enclose it and entice humidity and mold problems.
 
im not enclosing the room. Just the tank. The lid will hinge for easy viewing. I dont want to heat the room as I already know that it costs major $$ as previous owners did in order to have another room mate in the house.
 
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