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Old 17-01-2009, 10:17 AM   #48
Newtank
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Quote:
Originally Posted by DrTech View Post
I always worry about the base of the substrate and oxygen circulation in it. The colder countries still can afford to use substrate heater to circulate the water, but it seems to be quite a challenge in our climate. =/
actually for our climate, we still need a heater as it is used to keep the substrate warm, most of us just assume that just because the climate is warm,the substrate will be warm enough. But having said that, I do not use a heater myself
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