It's a 10 gallon. About a year old. This is the 1st time i've ever seen the red cyano in it.
I think I know how it came about. Started using municipal water for top offs and water changes.
Apparently, our city water has a high amount of phosphates in it.
Looks like nothing but RODI from the LFS from now on.
A quick question re: RODI water. I know a Pur filter is not a substitute for true RODI, but does the pur filter remove enough "crap" to make usable water, or should i just stick with going to the LFS once a week or so for a gallon or two of rodi / pre-mixed water?
Thanks,
Dave