While legal in most places, they are restricted in certain areas (e.g., California), due to regulations against introducing transgenic species into the wild.
Most GloFish species (like Tetras and Danios) are hardy and maintain the same, often peaceful, behavioral traits as their non-fluorescent counterparts. Glowfish
A common misconception is that they are injected with dye; true GloFish are produced via safe, genetic engineering. While legal in most places, they are restricted