Calcium Build-up On Heaters

Lord Zogat

Fish Crazy
Joined
Jul 7, 2006
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Ontario, Canada
My tank has been cycling for ages, so I am at the point that I might just flush it and put fish in anyways as there has to be some bacteria by now.

What I noticed is there is now calcium building up on my heaters, then it eventually flakes off and falls to the bottom if I don't catch it in time.

Will this hurt the fish? Would it build up more quickly with the heaters cranked for the fishless cycle? Is there a chemical to combat the buildup? It took over a month to really appear, but now it builds up fairly quickly.
 

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