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Fascinating Freshwater Fish: GloFish Electric Green Tetra

GloFish® has bred a select group of fish to fluoresce under black lights but also look like they are glowing under regular daylight bulbs or actinic bulbs. This select group of fish are bred with this fluorescent color, and they reproduce naturally, rather than being injected or dyed. Typically, GloFish® uses Zebra Danios, and they have come out with some interestingly named (and colored) fish, like Galatic Purple or Cosmic Blue. However, GloFish® recently bred an Electric Green Tetra to add to their list of fluorescent fish.

The GloFish® Electric Green Tetra, scientific name Gymnocorymbus ternetzi, is a variation of the White Skirt Tetra. A certain gene from the White Skirts was cultivated during selective breeding in order to produce the Electric Green color in the fluorescent Tetra. The Electric Green Tetra is one of othe hardier Tetras, and it is a peaceful omnivore that prefers to school. The native Region for this type of Tetra is South America, but the GloFish® Electric Green Tetra does not appear in the wild. If you decide to add this fish to your aquarium, make sure there is some swimming space, as well as some cover along the perimeter of the aquarium. It is not hard to order groups of at least three Electric Green Tetras, as they are approximately 2 - 3 inches long when full grown. In regards to water conditions, the Electric Greens prefer a softer, acidic water, but most adapt well to a wide range of water condition parameters.

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    Fascinating Freshwater Fish: GloFish Electric Green Tetra - Live Fish | Pet Care Corner by PetSolutions - PetSolutions Blog

Reader Comments (44)

I would like to know about how they get along with other fish. Thanks

July 14, 2012 | Unregistered CommenterNicholas Ashworth

Hi Nicholas - The personalities of the Zebra Danio-based GloFish are just like Zebra Danios. Only the colors have been modified in these fish, not the personalities or anything else about them. It is good to note that Zebra Danio GloFish are easily killed by anything that is aggressive, but the same thing occurs with regular Zebra Danios. Please let me know if you have any other questions!

July 16, 2012 | Registered CommenterKristen Sydelko

My green electric glofish have been in my tank for just over 2 days now and do not seem to be eating the fish flakes I feed them. What do you recommend

August 8, 2012 | Unregistered CommenterT

Hi T - Sorry not to see your post earlier! If you can call our Customer Service at 800-737-3868 and speak with our Live Deliveries Manager, John, he will be able to help you. There are so many factors as to why a fish might not be eating that it is better to talk to someone on the phone, rather than through comments. Good luck!

- Kristen

August 14, 2012 | Registered CommenterKristen Sydelko

I recently brought 2 neons and 2 glofish....both neons died pretty quickly. The glos seem to be ok but what should I do/check, to make sure I don't loose them too?

August 26, 2012 | Unregistered CommenterMichaela

Hi Michaela - I would suggest calling our Customer Service at 800-737-3868 to speak with our Fish Tech, Don. There are so many scenarios that could be occurring, it is something that is easier to discuss on the phone. I would definitely suggest testing your water, either with an at-home testing kit or taking a vial of water to your local aquarium store to have them check. Good luck!

August 27, 2012 | Registered CommenterKristen Sydelko

My friend and i are doing a project for aquatic science. We have two electric green tetras in a ten gallon tank. how do you tell if they are male or female? also how many eggs to they have at one time? Thanks!

September 27, 2012 | Unregistered CommenterEmily

I just recently added fish to a 20 gallon tank. The total fish added was 6 rosy barbs who used to be mild, 6 neon tetras, 4 of these electric green tetras, a boesemani rainbow,a redtail shark, and a golden algae eater. I woke up the next day to find 4 rosy, 1 neon tetra, one green tetra, the shark, the boesemani, and the algae eater left alive. What went down in my sleep. I made sure the water conditions were best for such a variety.

April 29, 2013 | Unregistered CommenterNick

Last Monday I bought an electric green tetra, a bala shark, a red dwarf gourami, & 2 Chinese algae eaters for my 55 gallon tank. A few days later, I found one of my algae eaters dead, & it appeared it had been eaten on. Last night, I noticed my red dwarf gourami acting strange; it looked like it was dying. Then I noticed its fins had been eaten. By this afternoon he was dead... Now, I find that the electric green tetra is chasing my bala shark around the tank! I'm sure it killed the other two fish!!! I thought they were supposed to be non-aggressive! What gives???

July 14, 2013 | Unregistered CommenterSelena

Nick, I believe I responded you to via email. Sorry for the late delay in responding on your comment!

September 26, 2013 | Registered CommenterKristen Sydelko

Selena, tetras are supposed to be community fish. They appreciate some cover, as well as at least 3 or 4 of them in one tank. If your bala shark is smaller than your tetra, it could decide to chase it around. Tetras won't bother fish that are bigger, but they could chase smaller fish. Keeping at least 3 tetras should prevent them from bullying smaller fish.

September 26, 2013 | Registered CommenterKristen Sydelko

are these fish like black skirt tetras?

December 29, 2013 | Unregistered CommenterBobby

Hi Bobby - The GloFish Tetras are a fluorescing variation of the White Skirt Tetras, which are a farm-raised color morph of the wild Black Skirt Tetra. Somewhere down the line, there is a relation to the Black Skirt Tetra.

I hope that helps!

December 30, 2013 | Registered CommenterKristen Sydelko

thank you. I have three black skirt tetras. Do you know a website that i can use to help me with a problem???

December 30, 2013 | Unregistered CommenterBobby

Hi Bobby - Sorry not to respond earlier. I was out of the office and didn't see your message.

If your problem has to do with your fish, I would suggest going to the place where you bought the fish. They should know the most about the fish because they took care of it before you purchased it. If it is about behavior, environment, etc, I might be able to help. We have a Live Deliveries Manager on staff, and we usually have a Fish Tech but he is out at the moment.

January 6, 2014 | Registered CommenterKristen Sydelko

One of my electric green tetras is doing a lot of floating and tilting in the tank. I have had them for about a year with no problems. This behavior has not been observed in the past. Do I have a sick tetra or is this normal? Thanks Retta

January 7, 2014 | Unregistered

Hi Retta - There are two possibilities to your situation. The first is that your fish has a problem with its swim bladder. It can be fine and live like that, or it may die. The other possibility is that it is in the process of passing away, and there isn't much you can do for it. Basically, you have to wait and see. Just take care of your tank like normal, but watch if that fish does pass - you will want to remove it from your tank as soon as you see that so your water quality doesn't get affected.

I'm sorry there isn't anything we can do to help!

January 8, 2014 | Registered CommenterKristen Sydelko

Thanks so much Kristen,
Your response about my "electric green Tetra", was very helpful. He's hanging in there. (Eating, floating, and tilting) Even though I understand, it saddens me to see him going through this cycle of life. Thanks again, Retta

January 11, 2014 | Unregistered CommenterRetta

I'm glad I was able to help, even though it isn't necessarily good news. I understand about it being sad - we never want to see our pets suffer.

January 13, 2014 | Registered CommenterKristen Sydelko

Hi- I am looking at getting neon green tetras to go with African dwarf frogs. Do you think the tetras may chase them? Thanks!

January 19, 2014 | Unregistered CommenterKara

Hi Kristen,
I wanted to give you an update on my tetra. He's still hanging in there. (Tilting, floating, and eating) He seems to be moving faster these days. I think you were correct about the bladder disorder. He darts around with speed at feeding time; so I know he has strength to move quickly when needed. His movement's just appear so unorthodox and life-threatening.
Thought you would like to hear an update, and thanks again, Retta :)

January 21, 2014 | Unregistered CommenterRetta

Hi Retta

Glad to hear he's doing somewhat better! I hope he continues to do well. It is amazing what anyone can adapt to if need be.

Thanks for the update!

January 21, 2014 | Registered CommenterKristen Sydelko

I have 2 glo tetras 1 pink 1 green I was thinking about a yellow one but they're really expensive will they be fine as a pair also can 2 different colors breed. Thanks

April 30, 2014 | Unregistered CommenterBrian

I bought 4 glo neon tetras this morning. One pink, one orange, one purple, and one green. This evening my pink fish has turned green. Is this normal, or do I have a mutant fish?

May 8, 2014 | Unregistered CommenterLisa

Hi Brian

Glofish are a zebra danio, and as such, they will always be much better off in schools. “The more the merrier,” is true with these. Will they be ok with just 2 in the aquarium? Yes, they will probably be ok, but they may not be as brave without more to keep them company.

Please let us know if you have any additional questions!

May 14, 2014 | Registered CommenterKristen Sydelko

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