I plan to keep them with a shoal of either Cherry barbs or Harlequin rasboras. I was intending to go for Cardinal tetras but think the water will be too hard. What do you think? A: Bob replies: ...
the Rift Valley cichlids aren’t soft water fish by any means, though the nitrate levels in ‘London tap’ doesn’t do them any good. Rainbowfish are a mixed bag, with some species preferring or even ...