Well, you are lucky there is youtube out there! Look for a video about Otocinclus affinis by “fishfromvenezuela” and you will se exactly what a biotope should look like.
They also have underwater video of wild rams and the water they live in is clean and if you look closely you will see Echiornia diversifolia and ericaulones spp. in many of their videos. they also have cardinals diamond tetras etc.
Regards,
Luis Navarro
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