Those are nice looking plants despite your water.
The cheapest way to get good water is to drop a hundo on an RO machine.
Don't forget to order the float valve and 1/4" shut-off valve
so you can make your own RO rez and store 20-30 gls.
Here is a site with the best deals on RO machine and parts.
http://www.purewaterclub.com/
RO made my grows take-off !
I add back just the right minerals in perfect proprtion
by adding 50-100ppm of calmag plus, about 1ml/gl.
I use the Botanicare CM+,
and there are other brands available.
Calcium and Magnesium are usually in short, or improper supply,
when you use well, or tap water.
Using RO and adding calmag+
will have everything in your water in proper proportion.
Keep the pictures coming.
.