"Ali Day" wrote in message
...
Hi,
I have one surviving guppy left in my tank (the others died over the
years).
My pH used to be set around 7.2, but I brought it down to 6.5 a year or
so
back for the discus. I am worried about him being on his own and having
an
identity crisis, as I think he now believes he is a Rummy Nosed Tetra,
as
that is who he schoals with.

I asked my LFS (who know my tank) about getting companions for him, and
they
said that he has become acclimatised to the pH over the years, as I
brought
it down, and if I bought new ones they wouldn't survive too long, and
it
would be best to leave him on his own. Unfortunately I have a
girlfriend who
thinks this guppy should have friends.

I've had a look round the web and cannot find a definitive answer on
recommended conditions.
But what I would like to know, is does anyone have guppies in a discus
tank,
and how do they fare?

Cheers

A


My first concern would be the acclimation. If your LFS is at 7.2, then
let you Discus tank drift up to 6.8 and the transition will go much
better. After a month, you can return to 6.5, though I think 6.8pH would
be fine for the Discus. My other concern would be quarantining the
Guppies. As Guppies tend to be fragile, you will need a few extra, and
ideally a hospital tank for the quarantine. You can complete the pH
transition in the hospital tank.

You might find that the mortality of the Guppies is poor, but their fry
will be much better acclimated to your water. You just need to keep the
fry alive (breeding trap) for several days to improve their chances of
survival.
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