rummies vs cardinals
Rummies and cardinals need acid water PH 6.5 temp 88-90f.
You must add some of your tank water to the water you got them in very slow ie when you have doubled the water in the container this should take about 3/4 - 1 hour.
Rummy nose tetras are a good indicator of the tank conditions ie nice red noses = good water .... pale noses check the water.
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