Hi all,
You can occasionally pick up
Dicrossus filamentosus, they come in as by-catch with Cardinal Tetra etc. If you ask around shops locally they may be willing to retain any that come in that way for you.
Dicrossus maculatus would be more problematic, I got mine from "Rare Aquatics", who have since shut. A friend picked them up for me (from Crewe), and I collected them subsequently from him in Bristol. They were great for 18 months (I got them as juveniles), but eventually bloated.
A fairly general observation with
Dicrossus spp. is that they need very careful feeding as adults.
Really difficult to photograph, the blue
Apistogramma males are the same. This <"
the best I've got">, but I'm not a photographer and it doesn't really do him justice.
cheers Darrel