The initial shrimp whether blue, brown , yellow, orange are all very pretty and going strong . Since I mixed them in a large planted tank . They "interbreed" and generations down the line the babies lose much of the color because "hybrids" are breeding with "hybrids".
You actually told me they would interbreed but I did not listen hee hee .
However the initial adults who by chance still breed with each other , even if diff colors still put out very pretty shrimps but if those "hybrids" than breed the colors get "weak" and fade away.
The 29 gallon high will be for the hybrids which lack color . I'll siphon some out here and there as I see them .
When my daughter and grandkids come to visit in summer for 2 weeks , I will have her take pics and post them.
It is interesting how several generations without selective breeding as far as keeping one color scheme by itself , how they change .