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I have raised zebras and , mostly, giant danios ; that is too large for eggs . My guess would be disease "dropsy". What I would do is wait for them to die and make sure no other fish also have the problem. Dropsy does not seem to be very contagious.


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betas aren't meant to be in the same tank together like male and male will fight but females together don't I did research and found out they can be together the chances of one of them dieing is slim it is possible when you were not paying attention the male could of attacked the female and the female could of got (revenge) or nibbled him back but that is my ...


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The only way to improve a fish color for real is with good food with beta carotene, I remember tetra brand having some of them. You can check deeper information about that here: http://www.seacolors.eu/images/NPR_61_46-49.pdf Is not going to be magic and will take some time. You can also use home made food but that's a more complex task as well as more ...


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Assuming that we have pure, distilled water at 25 °C: its KH is 0 because it has nothing dissolved in it; its initial pH is 7 (which is neutral pH at at 25 °C). Having said that, we must consider that - unless the water is stored in a sealed and airtight container, which aquarium certainly isn't - it dissolves some amount of the air constituents. We could ...


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Limescale is made of insoluble carbonates of calcium and magnesium; in other words, they are salts of carbonic acid. Salts undergo displacement reactions: for instance, weaker acids tend to be displaced from their salts by stronger acids. In case of limescale it means that it is decomposed by acids stronger than carbonic acid (acetic acid, the main ...


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To my eyes she is pregnant, if she is showing shy behavior, this can often mean that she is pregnant. If you wish all the fry to survive, you may want to separate the fish to another aqarium. Once the fries are born, keep the mother separated as there are occasions that the mother eats them and catfish and assassin snails may eat them. Shrimp like Amano and ...


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I have never had an external filter like this and I have never experienced such a buildup in the filter - I have always been using internal, fully submerged filters - but based on your photo and description of the material being slimy I would say it is a bacterial biofilm that is attached to the precipitated limescale underneath. I do not think it is a ...


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