Quote:
Originally Posted by jassz
Do the rock need the heater and hte circulation? Heat shouldn't be a problem, it's hot here. Would it be all right if I just changed the water every couple days? I'm figuring this to be a four day event or so...? Do the rocks need any nourishment? Selco?
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The circulation is a must. Your rocks cannot move the water through themselves and if the water just stagnant the rocks will die. A power head of any size is better than nothing. The heater is more to keep temp fluctuations to a minimum and although air temperature is warm I'm sure it drops at night.