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Results 11 to 15 of 15

Thread: PH

  1. Default

    0 Not allowed!
    Is a product like Black Water Extract an additive that stabilizes the PH and replace the elements needed?

  2. #12


    0 Not allowed!
    Quote Originally Posted by mojosodope
    I would use Kent R/O right,
    I'm sorry I was not very clear on my last post. This was the additive I was referring to. There are some discus keepers in our local aquarium society that swear by this product when used with pure water containing 0 tds
    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. Default

    0 Not allowed!
    Black water extract is more used to mix with tap water than R/O water, it lowers your ph,gh,kh. Keep in mind that your R/O water is basically a blank slate, I'm not sure how the extract would work in such a situation but Kent R/O right is a proven additive. Like Cliff said, many Discus owners/breeders who use R/O water swear by it.

  4. #14


    0 Not allowed!
    Pure R/O water will kill discus. You must have some trace minerals (esp. Ca ions.)

    Once a pair of discus forms, breeding can be induced by a large temperature drop - say from 84/86 F to 78/80 F. The change can be created by adding cool water as a partial water change (pH should NOT change); however, the temperature fall should take fifteen to twenty minutes. This method has been used by experts and is similar to what happens in nature (spring rains.) At some point, the temperature needs to be allowed to rise back to 82 F. If breeding does not start, try again.

    Once eggs are laid, return the temperature to a better 84 - 86F; free swiming young are best raised at 88 F (faster growth.)
    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:

  5. Default

    0 Not allowed!
    ^ my mistake on raising the temp to induce breeding, got mixed up with treatment. To add to what was said above, Juvenile discus grow much quicker in water with a higher TDS count, unlike what is needed for a high hatch rate.

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