Chiller?
- Thread starter Vellu
- Start date
Depends what species you want to keep?
Only trout, whitefish, northern pike, graylings and Alaskan blackfish needs a chiller.
Only trout, whitefish, northern pike, graylings and Alaskan blackfish needs a chiller.
Ambient temperature in the room is 75 F, and you wish the tank temperature to be 40 F, correct? Tell us more about the tank setup. How powerful your chiller needs to be depends on how much heat is going into the tank.
A given chiller can only go down to a certain temperature. Ordinary aquarium chillers cannot go down to 40 F. You may need the type of chiller used for lobster tanks. My best guess is that you would need about a 12,000 BTU (also called 1 ton) chiller.
Chillers use a lot of power. The more you can reduce the chiller's workload the better. Some things you can do:
1. Use low watt lighting, and incorporate fans to disperse heat from the lights.
2. Use inline rather than submersible pumps.
3. Insulate the tank.
4. Use air conditioners or fans to reduce ambient temperature.
This site http://www.aqualogicinc.com/products/chillers/Delta-Star-Air-Cooled-Water-Chiller.htm#Sizing has the kind of chillers you require. You can fill out this questionnaire http://www.aqualogicinc.com/product...m-Questionnaire-Chiller-DeltaStar-Cyclone.pdf and send it into them; they'll tell you which model best fits your needs.
A given chiller can only go down to a certain temperature. Ordinary aquarium chillers cannot go down to 40 F. You may need the type of chiller used for lobster tanks. My best guess is that you would need about a 12,000 BTU (also called 1 ton) chiller.
Chillers use a lot of power. The more you can reduce the chiller's workload the better. Some things you can do:
1. Use low watt lighting, and incorporate fans to disperse heat from the lights.
2. Use inline rather than submersible pumps.
3. Insulate the tank.
4. Use air conditioners or fans to reduce ambient temperature.
This site http://www.aqualogicinc.com/products/chillers/Delta-Star-Air-Cooled-Water-Chiller.htm#Sizing has the kind of chillers you require. You can fill out this questionnaire http://www.aqualogicinc.com/product...m-Questionnaire-Chiller-DeltaStar-Cyclone.pdf and send it into them; they'll tell you which model best fits your needs.
MN_Rebel;2701839; said:
Plan is, that create a biotope of some river of northern Finland (in northern Europe). I maybe order an aquarium, 118" * 20" * 31" (300cm*50cm*80cm)
= ~1200 litres = ~300 gallons(?)
We have many species fishes in our river, trouts, whitefishes, graylings, perchs, and many other, and they need cold water.
Correct. I want temperature in tank be something in 40 - 45 F.
I know, I have use "low watt lightning" in 'winter'. And I have think if I put a styrox to three sides of aquarium, and put a doubleglass to one side.
One coldwater aquaristic recommended for me Aqua medic titan 2000. I don't know, do you have that model in United States.
I am not familiar with that model, but found some information here: http://www.swelluk.com/pdfs/Titan%20Cooler%20Instructions.pdf
It states that the 2000 model is recommended for tanks up to 1500 L if the desired change in temp is 10 degrees C. Your tank is about 1200 L, and will probably approach 1500 L total system volume with filtration. However your desired change in temp is almost 20 degrees C, so this model will not be adequate.
Are you sure the water needs to be that cold? Similar coldwater fishes in the US may be maintained at 60 F or so, which would make the Titan 2000 just about right.
It states that the 2000 model is recommended for tanks up to 1500 L if the desired change in temp is 10 degrees C. Your tank is about 1200 L, and will probably approach 1500 L total system volume with filtration. However your desired change in temp is almost 20 degrees C, so this model will not be adequate.
Are you sure the water needs to be that cold? Similar coldwater fishes in the US may be maintained at 60 F or so, which would make the Titan 2000 just about right.
Noto;2702238; said:
I use external filters for filtration, so total system volume is something about 1250-1300 L.
Do you really keep example graylings and trouts whole year in 60F ? In there, northern Finland our rivers and lakes temperature raises over 60F in two-three months in a year (summer), and in winter our rivers are something about 40F, and they have ice, and we can ice fishing.
We have talk about this thing in Finland, and if temperature is too high, example trout don't live so long than in cold water. But we didn't have many cold water aquaristic in Finland.
And, sorry my bad english.
I know that many aquarists keep trout, including Salmo trutta, Oncorhynchus species, and Salvelinus species at 60-65 F. You just have to be sure there is plenty of oxygen in the water. I don't know about the grayling, as they are seldom kept here.
Noto;2702484; said:
Oh, my dream fish in tank is Salvelinus alpinus http://www.rktl.fi/www/uploads/images/nieria1.jpg
They grow big, but I have an outdoor pond, about 2500 gallons. So if fishes in aquarium grow too big, I can put these in my pond. (Now I have only 10 perch in pond)
How I can be sure there are plenty of oxygen, is the only way to have stream in aquarium's water coat?
And if I want to chill water to 50F, what chiller you now recommend?
Really, as long as you keep the water below 65 F and super oxygenated, I would think most coldwater species would be ok. I worked at a trout hatchery for a couple years and on hot summer days, we had trouble keeping the outdoor tanks below 70-75 F and the trout still survived because we kept the water as aerated as possible. This is of course the danger zone where a slight change could cause the whole tank to turn, but normally below 65 is safe with high aeration. We did it with motorized pond aerators, but for your tank you could use powerheads and air stones. In the cooler months, you could also let some outside air into the room where the tank is and this could eliminate the need for a chiller in all but the warmest months
You can increase oxygen in the water by disturbing the water's surface. There are several ways to do this: you can pump air into the tank through bubblers, use a powerhead with its outflow near the surface, or have the water returning to the tank from the filter exit through a spraybar above the water surface. Live plants can also help.
I believe the Aqua Medic Titan 4000 would work. But don't take my word for it; ask the manufacturer.
Have you tried contacting the staff at the Helsinki Aquarium? They could probably help you find the correct equipment.
I believe the Aqua Medic Titan 4000 would work. But don't take my word for it; ask the manufacturer.
Have you tried contacting the staff at the Helsinki Aquarium? They could probably help you find the correct equipment.