About the Blue Three Spot Gourami The blue gourami, a variation of three spot gourami, are freshwater fish popular in the aquarium hobby. They are characterized by their silvery-blue coloration, two prominent spots (one mid-body and one near the tail), and their eye as the third spot. These fish are relatively hardy and can be a good choice for both beginner and experienced aquarists. Husbandry & Care Temperament: Semi-Aggressive Minimum Tank Size: 40 Gallons Water Temperature: 75-86 °F Water pH: 5.5-8.5 Social Group: Solitary in most aquariums due to the risk of breeding and additional male aggression. In larger aquariums, 4+ three spot gourami will thrive within a densely planted space. Diet: Omnivores; This species will accept most types of commercial pellet/flakes, algae, frozen brine shrimp/bloodworms Compatible with: Larger short-finned tetras, bristlenose pleco, zebra loaches, Corydoradinae.