So I was reading online about 7 new uses for a Penny some of the suggestions are very interesting but item #7 is by far the best of all..
7. Reader Tip: Birdbath Cleaner
To ward off algae, toss in a few pre-1982 coins; the high copper content retards growth.
Now i understand that this is for birdbath and not necessary fish tank.... BUT i am curious as to what copper MIGHT do in a fish tank? is it toxic? Will it be death like lead with high concentration of copper?
If its safe for fish.. this would be interesting for one tank of mine who gets about 90% sunlight everyday.. (planted tank)
Thanks!
PS: heres the article:
http://www.realsimple.com/home-orga.../index.html?xid=yahoobuzz-rs-012210&xid=yahoo
7. Reader Tip: Birdbath Cleaner
To ward off algae, toss in a few pre-1982 coins; the high copper content retards growth.
Now i understand that this is for birdbath and not necessary fish tank.... BUT i am curious as to what copper MIGHT do in a fish tank? is it toxic? Will it be death like lead with high concentration of copper?
If its safe for fish.. this would be interesting for one tank of mine who gets about 90% sunlight everyday.. (planted tank)
Thanks!

PS: heres the article:
http://www.realsimple.com/home-orga.../index.html?xid=yahoobuzz-rs-012210&xid=yahoo