it Does these:
1-minimizing chemical changes in the water.
2-preventing sudden dangerous drops in acidity.
3-reducing phosphate and Nitrate
4-preventing excessive algae growth
therefore reducing the water change need .
and of course :
5-ADDS VITAMINS, TRACE ELEMENTS AND MINERALS
enough??? Grab One(getting a 500Ml bottle is much more economical) and enjoy
21/11/07|Dave Sinclair
This is a stars rating area from zero to 5: 4/5
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Get this product.
It is good.
Test your water before, use it, test the water again, what a difference.