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Thread: Too warm or too cold?

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    Moderator Team RogueDiscus's Avatar
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    Default Too warm or too cold?

    I have a new spawn today I'd like to support. The tds in the tank is at 90. I want to add a good dose of RO with a water change to lower the tds a bit, and not have to do it for a couple days. We're in the midst of a hot spell and my RO Brutes are outside. One that's been sitting full is at 90 degrees, the other at 78. The tank's at 86. If I'm changing 2/3 of the water, which would you choose?

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    Silver Member Willie's Avatar
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    Default Re: Too warm or too cold?

    I've had discus pair off and produce spawn at both 78F and 86F, Steve. So I don't think it matters very much. In your position, I'd go with the lower temperature.

    Willie
    Last edited by Willie; 07-29-2018 at 09:43 PM.
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    Registered Member LizStreithorst's Avatar
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    Default Re: Too warm or too cold?

    I'd go for lower as well. The cooler water simulates the effect of a good rain.
    Mama Bear

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    Default Re: Too warm or too cold?

    The eggs were already there so I wasn't trying to stimulate spawning, just not kill the eggs with too large a temperature difference. I mixed from both barrels and got roughly the same temp as the tank. I guess the pair didn't like me messing with their water. The eggs were gone this morning. Darn!

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    Registered Member LizStreithorst's Avatar
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    Default Re: Too warm or too cold?

    I knew that you weren't trying to stimulate spawning. What I said is that the cooler water simulatesthe cooler temperature of the rain.
    Mama Bear

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    Default Re: Too warm or too cold?

    Yes, I got that Liz. I wasn't trying to argue with you, but since the eggs were already there I didn't think making it cooler really mattered anymore. It was a response to Willie's post too.

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    Moderator Team Adam S's Avatar
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    Default Re: Too warm or too cold?

    Not sure if it works this way with discus, but cooler water can throw some plecos for a loop if they already have a spawn. Makes them think it's time to get busy again, so they give the current spawn the boot.

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    Default Re: Too warm or too cold?

    Quote Originally Posted by Adam S View Post
    Not sure if it works this way with discus, but cooler water can throw some plecos for a loop if they already have a spawn. Makes them think it's time to get busy again, so they give the current spawn the boot.
    Thanks Adam. This gives some insight into what happened.

    It's always about timing. They sometimes seem to prefer the tank water to age before spawning, but then I think the influx of fresh water might have done what you suggest.

    They're looking friskie again.

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