| The Glowlight Tetra, Hemigrammus erythrozonus is a | | | | Widow Tetras, Cardinal Tetras, Head and Tail Light |
| peaceful little fish. The other common names are | | | | Tetras, Glass Bloodfin Tetras, Guppies, Endlers |
| variations on the spelling of Glowlight Tetra; Glo-light | | | | Guppies, Neon Tetras, Peppered Catfish, Siamese |
| tetra, Glolight and Glolight. The Glowlight Tetra usually | | | | Fighting Fish, White Cloud Mountain Minnows and |
| grows to about one inch (2.5cm) long although there | | | | Zebra Danios. Note that not all these common |
| are reports of ones as big as one and a half times | | | | companions are compatible with each other. |
| this size. The Glowlight Tetra is a South American | | | | Fish I would not suggest as companions for this fish |
| tetra coming from the Essequibo River in Guyana. | | | | are the larger and more aggressive fish and the ones |
| This river has rapids and water falls. | | | | that need different conditions. These include many of |
| Water Conditions | | | | the Cichlids as well as such fish as the Great White |
| The Glowlight Tetra is a tropical fish. 24 degrees C | | | | Shark. |
| (75 degrees F) is a suitable temperature for a mixed | | | | Feeding |
| tank including Glowlight Tetras although in their natural | | | | The Glowlight Tetra is an omnivore and will eat all |
| habitat they have slightly warmer water than this. | | | | normal fish foods. I suggest a good quality flake food |
| The ideal pH is about 6.8 although they will tolerate a | | | | as a basis of their diet and live and frozen food to |
| range of ph from 6 to 8. In a mixed tank 7 (neutral) | | | | add variety. Good live foods include daphnia and |
| is suitable. | | | | mosquito larvae (wrigglers). Good frozen foods |
| The hardness of the Essequibo River is low and soft | | | | include frozen bloodworms. |
| water is better for this fish. They will tolerate slightly | | | | Breeding |
| harder water; they are quite tough little fish. | | | | Like most of the tetras the Glowlight Tetra scatters |
| Companions | | | | its eggs and does not look after its babies. Removing |
| The Glowlight Tetra is a schooling fish and I suggest | | | | the adults after spawning is a good idea. This fish is |
| at least four and preferably more be kept together. | | | | moderately hard to breed. To improve your chances |
| Other fish that can be kept with them include all the | | | | of success, feed the adults well on rich foods |
| other tetras, most of the barbs, the Danios, most | | | | including plenty of live food. The water needs to be |
| common live bearers, the Corydoras catfish, Clown | | | | very soft and slightly acidic. Raising the temperature |
| Loaches, Kuhli Loaches and other small peaceful fish. | | | | to about 27Ì? C (81Ì? F) may induce |
| Common companions include Black neon tetras, Black | | | | spawning. |