Blue Gourami , aka Three-Spot Gourami (freshwater, Southeast Asia) --I really enjoy gouramis, though these are not my favorites. Normally silvery blue in color, their colors darken or lighten with their moods. These grow to be 6 inches and are pretty hardy.
Blue Tetra Tank Size : 20 to 30 gallon Care Level : Easy Size : 1.6 inches pH: 6 - 8 Hardness: 5 - 12 Temperature : 73°F - 82°F Lifespan : 3 to 4 years Tank Region : all over the tank Population: 6 - 8
celestial pearl danios Size: Up to 1 inch Relatively easy to keep Water Temperature 70 - 82 ºF Water pH 6.0 – 8.0 pH Water Hardness: 2 - 15 dH Tank Level: All but mostly middle Temperment: Peaceful Group size: Six or more Minimum tank size: 6 gallons for every group of six fish Lifespan: 3 years
Threadfin rainbowfish Size: 2 inches Easy to keep Temperature: 73 - 86 ºF pH: 6.0 – 8.0 pH Hardness: 5 - 15 dH Tank Level: Top and middle Six or more, try and keep one male for every two females. Minimum tank size: 12 gallons for every group of six fish Lifespan: 4 years
Clown Loach Care Level : Medium, very prone to ich infestation and is not recommended for the freshwater aquarium fish beginner. Size : 12 inches pH : 6 - 7.5 Temperature : 75°F - 85°F Water Hardness : 5° to 15° dH Lifespan : 10 years and longer Tank Size : 75 gallon or larger. Tank Region : Mostly the bottom
Oscar Fish Tank Size : 75 gallon or larger. Care Level : Easy, good for freshwater beginners with a large enough tank and those with an adequate aquarium filter and those willing to perform frequent partial water changes. Size : 13 inches Temperature : 72°F - 80°F pH : 6 - 8 Hardness : 5° to 20° dH Lifespan : 10 - 13 years Tank Region : All over
Dwarf Gourami Tank Size: 15 Gallons Care Level : Easy Size : 3 inches Temperature : 77°F - 82°F pH : 6 - 8 Hardness : 5° to 20° dH Life span : 3 - 4 years Tank Region : Middle to top Population: 1 pair per 15 gallons Notes: The substrate should be dark to bring out the colors of this pretty fish. Plant the corners and sides of the tank heavily and allow open swimming areas in the middle. A few floating plants are recommended to provide areas of shade.