Makes sense since Altums and Scalare do look somewhat similar to each other. Personally I'd go with a true Altum rather then a Scalare but finding true Altums around here isn't so easy sadly. Ik there are some angels that I would absolutely love to keep like the Altum or the Blue Pinoy Paraiba. Ya wouldn't happen to have any experience with the Blue Pinoy would ya? That one's is kind of next on my list to breed.
