0 Hardness

[Gourami123]

my water hardness comes out of the tap at 0 on every test i want it to be higher for the best of my fish but i want to keep it acidic for the fishand lime stone and shells turn it alkaline
fish are rummynoses angelfish corys and dwarf gouramis
any ideas on how to improve this

 

[ellena]

Soft water is what most fish like though, why do you want to increase the hardness?

 

[loachman]

Those fish should be fine in soft water.

You can buffer it a little bit if you have issues with a widely swinging pH, otherwise it should be okay.