Hi again,
And thanks for the reply. I have had a productive weekend aquarium wise. I have read through the links you suggested and found some more info of my own! I am also a proud owner of what I believe is a PNG strain of Melanotaenia Maccullochi! My tap water is neutral towards acidic and the hardiness is just about medium. This was one of the reasons to keep the Peacocks and Praecox and now NPG Maccullochi ones joined in – I really prefer to create as close as possible natural environment without messing too much with the tap water (I do use a deionising filter sometimes for topping up evaporation). I know that the rumour is that all commercially bread Praecox are from the 4 fish which Heiko Bleher brought from PNG... My 7 ones are seemingly going strong so I am intending to keep this kind of fish.
I completely agree with you – it is not quite possible to create a 100 % true biotope. There are practical as well as aesthetical reasons for that... Therefore, I will keep my beloved Amano shrimps as a cleaner crew for the tank – at the end of the day, they are from South East Asia (not, say, from Latin America), not likely to be eaten , do an excellent job of cleaning and are literally “invisible” in comparison with the Rainbows and the Peacocks. I am thinking about some Stiphodon as well – and that will be it, I think.
I am inclined to use Seachem Florite as it is one of the substrates I like.
However, the plants WILL be PNG ones. I currently have quite a few – Pogostemos Stellata, Hornwort (Ceratophyllum Demersum), Java Fern “Trident”, Ceratopteris Thalictroides, etc. and am gradually getting (or thinking of getting) other ones.
I have found an interesting source of information this weekend:
http://books.google.co.uk/books?id=nG9X ... ts&f=false
Not sure you will be able to open it – it does seem too long, but if you do, page 527 seems to be very interesting.
I do hope you will get around taking some photographs of your PNG tank – would be very interesting to see. On the topic, it does seem this discussion went beyond your initial topic – maybe, when you get your photographs taken, it would be wise to start a new topic... As I said, my “PNG” tank is only temporary (which may last into as much as a year though) but I am happy to join into the new topic if you get around to post some pics...