P. Ranga is peaceful and shy and should not be combined with vigorous or aggressive species. The choice of tankmates is also governed by the type of water in which it is being kept. In freshwater conditions, it can be kept with barbs, livebearers, smaller rainbowfish, loaches and many other small tropicals. In the brackish conditions, mollies, bumblebee gobies and chromides are all possibilities.
The Indian glass fish is a shoaling species and will not do well if kept singly or in pairs. Aim for a group of at least 6. Males do become somewhat territorial when spawning but physical damage is rare.