Is true for the WC altum, he mortality rate is very high, that's why i prefer tank bred, but it is so difficult to find tank bred altum. it took me 2 years to get this batch. and i pay a lot for them, arrive 53pcs at 5cm tall, and it is still 53pcs now, some at about 20cm tall now.
I also have another blood line of tank bred altum too, and also 3 batch of wild altum. i will breed with this altums. will cross back hem with wild altum.