I have boseman's rainbowfish in my planted aquarium. I have read that they prefer alkaline water. With CO2 injection the ph is driven down to around 6.6-6.7. I may be reading too much into this, but the boseman's, although nicely colored dont look as active as others I have seen. Assuming good water quality, could the acidic water be affecting them negatively? If so, would it behoove me to use crushed coral or something like alkaline regulator to raise the KH. The KH in my water is around 3.0 increasing the KH should also raise the ph. Of course I have always been adviised not to mess much with adding chemicals to the water.
I do love my rainbowfish. Your advice is appreciate.
I do love my rainbowfish. Your advice is appreciate.