Granty thank you very much for the information of people who might be able to help
I will certainly consider them in August if this falls through (which I suspect that it may well do so)

You can get them with large nuchal humps "kok" from about 5"

As my tank is 4` x 12" x 15" the reason behind why I was looking for something smaller

The large one that you found is spectacular but it would not be fair for it in my tank

Many thanks again

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1 Fly river turtle
3 Oscars
3 St Bernards
4 Cavaliers
1 Labrador
2 Lovebirds
6 Chinchillas
" and a Partridge in a Pear tree"