aquarium barb biotope fish fish tank freshwater fish freshwater tank garra garra fish garra flavatra leaf leaves panda garra plant rainbow garra rock stone under sea view under water under water world animal freshwater platy tropical underwater water wild wildlife albonubes Minnow Tanichthys tank aquarium-fish artificial breeders breeding colorful colors colourful colours common community-fish differences freshwater-aquarium-species guppies guppy guppy-strains hardy jar live-bearing-species millionfish pattern-variations patterns peaceful plastic-vegetation poecilia-reticulata popular rainbow-fish shapes Sizes small-size species tank-water temporary-container tropical-fish variable-food-preference variations variety widely-distributed