Planted Tank Guru
Join Date: Jul 2010
Location: Huntington Beach, CA, USA
This is a quote from the information:
At pH values below 4.5 solubility rapidly increases, causing aluminum concentrations to rise above 5 ppm. This may also occur at very high pH values.
Do you plan for your tank PH to drop below 4.5 or have very high PH levels. Like maybe your fish are swimming in acid or lye? At those levels, I would guess aluminum to be dangerous but then my fish will have died long before then!
I would look for more information before accepting that aluminum is a hazard. I have lots of aluminum cooking equipment which we use every day.
It might be worth noting that this information is provided by a company which sell things to remove aluminum from water. Does that taint their thinking on the need to remove aluminum?
I consider the salesman to be the least reliable of all information sources.