Members who keep British marine life in their home aquaria are faced with the problem of keeping the aquarium temperature down during the summer because 50% of the normally kept fish and invertebrates are unable to withstand temperatures in excess of 22ºC. As the air temperature reaches 28ºC on occasions during the summer, and as the tank temperature quickly matches the air temperature, some method of cooling the water has to be employed.
The old method is to pump the water through a beer cooler and back into the tank again. Unfortunately, beer coolers are noisy and unreliable. The compressor is liable to pack up and it is usually too expensive (£70+) to repair. Special 'titanium' aquarium coolers are available from the USA. They are initially very expensive and beyond the pockets of most enthusiasts. They can be obtained through NT Laboratories.
PS: Modern aquarium coolers are available in the UK. They are expensive to buy and run.
Beer, or cider, coolers are also difficult to get hold of. The usual
price for a reconditioned model with 3 months guarantee is about £65.
are not recommended. They are unreliable.
Single outlet cider coolerCooling of the water is slow and you will probably have to run the cooler overnight to find out if it is cooling the aquarium sufficiently. The two-outlet models should be able to drop the temperature in a 225 litre (50 gallon) aquarium by at least 8ºC.
I have been recommended the Emerald coolers produced by SI Industries.
More Information on Coolers
SEA SURFACE TEMPERATURES
D & D Refrigerated Coolers
& D Refrigerated DC Series Aquarium Chillers / Coolers.
D&D DC Series Aquarium Chillers represent a significant step forward
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to UK Gallons Conversion Chart