3 least killifish in 2 gallon?

[SuperShrimpSamurai]

I have a tall 2 gallon hexegon aquarium, that is fully cycled. Due to excessive light, there is about 3 inches of hair algae growing, if not more. I am wondering what livestock I could add beside shrimp and snails. In the tank there is about an inch and a half of gravel, fake plants and the filter that came with it. (Not very good filter, will probably switch it for a small sponge filter.) No heater, but I have one on hand. I've heard least killifish may be a good option, maybe 3. Again, I am a beginner, so I am not really sure. Below there is a picture of my current tank. Thank you in advance.

 

[CWL7211]

Kilifish can get up to 6 inches and require at least 10 gallons for a pair. Kilifish would not do good in here. Shrimp would be the most humane, there's really no fish you can put in a tank this small.
I would advise to try to get as much algae as you can out of the tank.
Once you get the algae to a manageable amount, you can maybe add a few plants. Plants will out compete algae for nutrients, leading to an algae free tank if you manage it well enough.
When the tank is completely cycled and the algae isn't taking over, you can add some shrimp. They will eat the algae and if you get a colored variety, will look very pretty

 

[chromedome52]

First point, the Least Killifish (Heterandria formosa) is actually a pygmy livebearer, native to the SE United States. Females can get about an inch, and males stay well under that. A trio in a 2 gallon container is perfectly fine. They have a relatively slow reproductive rate, so overpopulation takes a long time.

Second point, not all actual killifish get 6 inches. Species vary from 1.5 inches to 10 inches or a little more. There are a number of smaller true killifish species I would happily keep in a 2 gallon tank.

I agree that the algae is a bit out of control. I would probably remove a large amount of it manually, add some floating plants to cut the light, and maybe add a few Neocaridina shrimp.

 

[SuperShrimpSamurai]

Thank you for the advice.

 

[Pinkplaty109]

As Chromedome52 said, Least killifish are a great idea. I would recommend adding some beginner plants such as java moss to the tank if you do go forward with this plan, as it will take some nutrients and minimize algae, plus would be good if shrimp are added, and for the overall well being of the least killifish tank. It is very easy to care for, and you can buy it for pretty cheap at local fish stores (lfs). It does like its lighting on the lower side though, so I would recommend that even if you don't get Java Moss, do 8-10 hours maximum. Hope that this plan works out for your tank!

 

[SuperShrimpSamurai]

As Chromedome52 said, Least killifish are a great idea. I would recommend adding some beginner plants such as java moss to the tank if you do go forward with this plan, as it will take some nutrients and minimize algae, plus would be good if shrimp are added, and for the overall well being of the least killifish tank. It is very easy to care for, and you can buy it for pretty cheap at local fish stores (lfs). It does like its lighting on the lower side though, so I would recommend that even if you don't get Java Moss, do 8-10 hours maximum. Hope that this plan works out for your tank!

Thank you.

 

[SuperShrimpSamurai]

I have a tall 2 gallon hexegon aquarium, that is fully cycled. Due to excessive light, there is about 3 inches of hair algae growing, if not more. I am wondering what livestock I could add beside shrimp and snails. In the tank there is about an inch and a half of gravel, fake plants and the filter that came with it. (Not very good filter, will probably switch it for a small sponge filter.) No heater, but I have one on hand. I've heard least killifish may be a good option, maybe 3. Again, I am a beginner, so I am not really sure. Below there is a picture of my current tank. Thank you in advance.

On my last post I asked if 3 least killifish could be stocked in a 2 gallon. I advise to read that first and then come back to read this one. After hearing all the replys, I will clean up the algae, and add 3 neocardina shrimp. The plants I will add will be duckweed, java moss and _______ . My filtration will be a small sponge filter, as the HOB filter that came with the tank is really weak. I will feed my shrimp shrimp pellets, and the killifish will be fed micro pellets. I will also perform a weekly water change of 25% to keep the water clean and livestock healthy.

 

[TonyY]

Its fine