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Znaika

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Posts posted by Znaika

  1. Reducing permanent hardness is possible pretty much by RO only. You can reduce total hardness from 12-14 dH down to 6-7 dH by reducing temporary (carbonate) hardness from 6-7 KH to 1-2 KH by preliminary cooking water in a barrell with a mesured addition of acid (this is cheap) or sour salt and aging for a day under aeration.

  2. Quite common in Asia, for some reason it is rare in the hobby. Sometimes they come as stowaways with other rasboras and barbs, so over a time I managed to collect a few from different places. One happened to be a female, so I was trying to breed them.

    First attempt was unsuccessful - all eggs succumbed to fungus, but second time around I used methylene blue and now I have tons of fry, yay!

    Infusoria culture in not yet ready, will try to raise them on surrogates.

    Rasbora_daniconius.jpg

  3. Two 300W heaters, even if constantly on, result in 14.4kWh / $1.3 per day or $39 per month in electricity costs. Factoring all admin costs you will end up with about $50. The cost of additional gas will be about half of that. Your monthly savings will be at about $25. Whether the effort is worth it - your call. Frankly, I would rather adjust thermostat and airflow registers to heat this room a bit better, so that your heaters took a break and left it at it.

  4. Totally depends on what kind of fishes they have. Semipermeable membranes of freshwater fishes' cells are more "permeable" than of saltwater ones. As a result, osmosis gradually increases salinity of their fluids and over time inevitably affects their health in a negative way. How much - depends on dissolved salts concentration and the duration duration of the exposure.

  5. All these temperature ranges are very relative. When I studies the subject of temperatures, pH, KH and dH in the natural habitat of my fishes, I finally came to a conclusion that all parameters vary wildly, the only thing that is constant is a slow speed of change.

    For example you specified 23-25°C for blackline rasboras (Rasbora daniconius, I suppose). The research I have seen shows the temperatures in their habitat varying from 24 to 30°C within the same small stream and at the same time. The seasonal fluctuations widen the range even firther: from 22 to 32°C

  6. petsandponds.com is good.. they sell cheaper than any stores that i know

    Not according to my recent analysis.

    Pets and Ponds will sell it for CAD 41.98 (including CAD 14.99 for the shipping)

    Mail Order Pet Supplies will sell it for CAD 36.18 (including CAD 6.95 for the shipping)

    PetCareRX will sell it for USD 36.98 (including USD 5.99 for shipping), but if you buy something else for USD 9 or more (to reach USD 40), shipping is free.

    J&L Aquatics will sell it for CAD 33.84 (including 11.87 for shipping and handling)

    Or simply go to nearest PetsMart - they usually sell it for about CAD 35.

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