They look very similar to Blue Rams except I cant control the high heat. I live in the desert and its 95F outside now, while my house temp is around 80F.There’s also Bolivian Rams as well. They may not be has pretty as the German Blues, but don’t need the higher temps and not as sensitive. A pair should do just fine in a 20 long, or as a single centerpiece. I currently have a bolivian and I’ll post a photo of him as an example.
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