Aquarium Forum

  · Tropical Fish Home
· Fish News
· Aquarium Forum
· Buy & Sell
· Calculators
· Equipment reviews
· Free Aquarium Ebook
· Feedback
· Link to us
· Photo gallery
· Plant species
· Tropica Plant DB
Tropical fish species
· By Common name
· By Scientific name
Tropical Marine fish
· By Common name
· By Scientific name

        Via paypal

  · African Cichlids
· Algae Control
· Aquarium Decoration
· Aquarium Resources
· Aquatic Plants
· Barb Fish
· Betta Fish
· Breeding Fish
· Catfish
· Central American Cichlids
· Cichlids
· Clownfish
· Corals
· Corydoras Catfish
· Discus Fish
· Dwarf Cichlids
· Fish Diseases
· Frogs and Turtles
· Goby Fish
· Goldfish
· Gourami
· Invertebrates
· Jellyfish
· Killiefish
· Lake Victoria Cichlids
· Livebearers
· Malawi Cichlids
· Marine Aquariums
· Marine Aquarium Fish
· Other Fish
· Pleco
· Predatory Fish
· Photography
· Pond Fish
· Responsible Fish Keeping
· Rainbow Fish
· Shark Fish
· South American Cichlids
· Tanganyika Cichlids
· Tetra Fish
· Tropical Fish Food
Results 1 to 5 of 5
  1. Default Fish Dying but Levels are Normal :/

    0 Not allowed!

    I am somewhat new to freshwater aquariums (I was in the saltwater hobby for many years). I set up a 29g freshwater biocube about 3 months ago. I originally stocked it with 2 plants (a banana plant, an anubia) and 3 espei rasboras. I measured the levels of the nitrogen cycle regularly and did a 20% water change as needed, but at least once a week. Once the levels stabilized at zero I began adding fish and continued monitoring the water levels and doing water changes. At one point I had 9 rasboras, typically adding 2 every 1.5 weeks after the cycle. Everything seemed healthy and the plants were flowering and growing new leaves (likely from the nitrite portion of the nitrogen cycle).

    But now they are dropping like flies and I am down the 4. They don't show any signs of weird behavior beforehand and it's hard to tell if they are not eating beforehand. I saw one not eating,he looked healthy, and today another is dead. Hard to tell if it's the same one or not. They have been dying for the last 2 weeks. I am not used to this as I never had a major die off in my saltwater tanks.

    Since the fish are so small I don't know if I can see anything distinguishing for the dead fish. They look fuzzy, especially if they have been in there for awhile.

    Do you have any advice for me on how to stop the die offs? My friend suggested salt, but I am not sure if this is appropriate/how much/what kind. Is this the best way to go or should I do something else?


  2. #2


    0 Not allowed!
    How did you cycle your tank ?

    Your nitrates should not be a zero. That's one of the differences between the nitrogen cycle in FW and SW.
    If you take your time to do the research FIRST, you can successfully set-up and keep ANY type of aquarium with ease.
    "Not using a quarantine tank is like playing Russian roulette. Nobody wins the game, some people just get to play longer than others." - Anthony Calfo
    Fishless Cycle Cycling with Fish Marine Aquarium Info [URL=""]

  3. #3


    0 Not allowed!
    Not sure but what filter(s) do you have? Also, what is your nitrAte level (nitrIte will always be zero for a cycled tank.) pH level? If available GH/KH? Water changes appear fine - is your tap water chlorinated and are you using a dechlorinator? If the fish are get 'fuzzy' overnight that strikes me as rather fast - a fungus infection could be killing them. A picture would help (fish/tank.) Temperature of tank. Do you have an air stone running?
    Last edited by Cermet; 04-29-2012 at 07:24 PM.
    Knowledge is fun(damental)

    A 75 gal with eight Discus, fake plants, and a lot of wood also with sand substrate. Clean up crew is down to just two Sterba's Corys. Filters: continuous new water flow; canister w/UV, in-tank algae scrubber!! Finally, junked the nitrate removal unit from hell.

    For Fishless cycling:

  4. #4


    0 Not allowed!
    I second the question asked by Cliff........How did you cycle?

  5. Default

    0 Not allowed!
    My bad,

    I meant to say that the nitrAte spike at the end of the cycle caused the plants to grow well and that the nitrIte and ammonia levels are at zero. I will report the other levels after I get home from work.

    I do use a dechlorinator on the tap water before I do water changes.

    I cycled with fish, the 3 rasboras mentioned above. I fed sparingly and did water changes as needed to keep ammonia and nitrite levels to zero. Is that what you want to know about how I cycled? If not, what other details are you looking for?

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts