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  1. Default New to this, what community for my Fluval Spec 5 aquarium?

    0 Not allowed!
    Hi all,

    I have just bought a new Fluval Spec 5 and a 25W heater (not sure if I'll need it?) in order to have a few fishes. I have been reading quite a lot in the past days about what fish/plants I can put in there and have been getting contradicting information..

    I have read some people on forums say that I cannot put more than one beta in there with a few plants and cherry shrimps, while other places say I can get a few fishes in there, and the pet store where I bought the aquarium say I can put a school of 15 neon tetras in there, so I don't know what information is correct or not.

    I also read this excellent guide about stocking an aquarium that mentions what fish can go in an aquarium depends not only on the volume, but on the maintenance schedule of the water as well.

    I was thinking of getting a school of 6 neon tetras and 2-3 cherry barbs, with perhaps 1-2 small, low light, plants for my aquarium. Would those fish be compatible together, and if so, would this 5 gallons of water aquarium be enough with a once a week water cleanup/change maintenance for that community?

    Thanks for your time!

  2. #2


    0 Not allowed!
    I would not try anything in a 5 gallon tank other than shrimp and a snail or's much too small for any fish, maybe a single betta, but I'd rather have at least a 10 gallon for a betta.
    10 Gallon Beginner Tank... Journal
    40 Gallon Breeder: ... Journal
    29 Gallon: ... Journal

    “If there are no dogs in Heaven, then when I die I want to go where they went” - Will Rogers

  3. #3

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    People who say a 5g is ok for neons don't take into account space a fish needs to swim. As far as bio-load, a 5g is plenty of space, but as far as swimming room, most fish, including neons, will require more space. This is why a betta is usually recommended for a 5g, they are not as active as a tetra or other species of fish. You could do a small group of boraras maculatus, or one of the other species that stay less than 1 inch (2.5cm) as adults.
    When I go fishing I just throw sharp rocks in the water and wait for the dead fish to float to the top... Kingfisher
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    I think my fish is adjusting well to the four gallon, He's laying on his side attempting to go to sleep on the bottom of the gravel.
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  4. #4


    0 Not allowed!
    And be careful about the advice you get from the pet stores, lots of times it is inaccurate or just blatantly wrong...they are there to make $, first and foremost
    10 Gallon Beginner Tank... Journal
    40 Gallon Breeder: ... Journal
    29 Gallon: ... Journal

    “If there are no dogs in Heaven, then when I die I want to go where they went” - Will Rogers

  5. #5


    0 Not allowed!
    first of i can totally identify with you as i too had a 5 gallon before i upgraded to a 20 gallon.
    As far as stocking your tank goes your options are very limited. You could have a single betta and 5-6 cherry srimp
    a tank of only only shrimp and a few snails AND if you are very careful about the water parameters you can have maybe 3-5 guppies

  6. #6


    0 Not allowed!
    Nice thing about a spec 5 is that it offers a lot of swimming space:

    Drawback seems to be that the filter outflow requires some modification, apparently it is very strong.

    With this setup in hard water a small group of endlers is certainly possible. In soft water you could do a group of 8 boraras. The endlers can live with a relatively sparsely decorated tank, the boraras will require some wood and plants to do well.

  7. #7

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    0 Not allowed!
    I have one of these and I love mine. I have 7 Boraras urophthalmoides (notice how small they are in the picture), 2 otos and lots of red cherry shrimp. In the top of the filter chamber, I added another sponge to block the shrimp from entering that space. I also added a heater and it fits in the pump chamber. I also replaced the light with a FugeRay LED, but that may not be necessary.

    You can also look at chili rasboras or any of the other microrasboras and endlers as mentioned above.
    Attached Images Attached Images

  8. #8


    0 Not allowed!
    I gotta say, I strongly disagree with the 3-5 guppy suggestion. They are big waste producers.

    I would put in a betta with some cherry shrimp, or a school of micro fish as suggested.

    A small school of neons would be okay there, since it is a longer tank, but still not preferable.
    20 gallon with a male betta, neons, glowlights, and red cherry shrimp. (work in progess) Recently added a few LIVE plants and driftwood, Woooohoooo!

  9. #9


    0 Not allowed!
    In my opinion it's too small for neons

  10. Default

    0 Not allowed!
    Hi all!

    First, thanks to everyone for answering.

    As I understand it, the problem with my 5 gallon aquarium isn't the bio load being to capacity, it's more the fact that the fishes won't be "happy" because they won't have enough swimming space, is that right? The Fluval Spec 5, while only being 5 gallons, is a longer aquarium, so it has more swimming space than a "regular" aquarium. This is why I thought it would better suit other fishes (not just a betta like most forums suggest for a 5 gallon).

    After looking into some fishes that were mentioned in this thread, I found the chili rasboras particularly beautiful. Are they a schooling fish? They seem to go well with neon tetras (about the same range of temperature, ph, hardness, etc) as per my research. Would they be compatible together?

    Another question: what do cherry shrimps need to strive in an aquarium? I was thinking of adding maybe 2-3 of them in my Fluval Spec 5, not sure if they would go along with neons and chili rasboras though?

    Thanks again!

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