Minimum tank 20-gallon long for one pair, with more room for tankmates.
Adult size 1.6 in (40 mm), excluding the tail
Temperature 82–86°F (28–30°C)
Water chemistry For wild Colombian blue rams, aim for soft, acidic water, around pH 5.5–6.5. Ask about the shipment’s holding water before acclimating. Keep ammonia and nitrite at 0 ppm.
Housing & compatibility
Generally peaceful with small, calm fish that tolerate the same warmth. Pairs can defend a breeding site.
Diet
Offer small sinking foods and frozen invertebrates small enough to swallow. Check that the rams are eating.
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