From the Tetra website:"EasyBalanceŽ offers a number of benefits, including reduction of phosphate, stabilization of pH and KH, and replenishment of essential trace elements and minerals. One teaspoon treats 5 gallons.
Regular use of EasyBalanceŽ reduces the need for water changes for up to 6 months."
I don't trust a product which messes with the pH. Tapwater, regularly changed, should provide sufficient trace elements and minerals. Suggesting a product can reduce the need for water changes is irresponsible. Saying it can reduce the need for water changes for six months is criminal.
I have never held Tetra Inc in high regard. This diminishes my opinion of them even further.
One of the best water conditioners is Seachem Prime. I recommend it highly, as do most of the keepers on here.