Two observations and a question. My South American tank has Glowlight tetras, a pair of a. cacatuoides juveniles and a Bolivian ram. Observation #1. There has been no tension between the cacatuoides and the ram. They often mingle together. This may be because the cacatuoides are young. Observation #2. The ram prefers to rest on a rock or on the substrate rather than hover. I have posted about this ram the other day. He arrived on February 25 by mail order in terrible shape. I sent a photograph to the seller and he reimbursed me for the fish because we both thought the ram would die. However, a salt bath and tender, loving care resulted in great improvement in the Rams condition. He doesn’t have great color. My question is, is it unusual for a Bolivian ram to rest on the substrate, or on other flat surfaces, rather than hover and swim. He lives in 77°F water, pH 6.5, GH115 ppm with no ammonia or nitrite. Nitrate levels are around 5 ppm. He has performed this behavior during six weeks of quarantine, and now three weeks in the South American tank. See pics