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Thread: Aquarium

  1. #1
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    Unhappy Aquarium

    Is using the water from a water softening system safe for fish in a freshwater aquarium? We have hard water with a bad smell in the summer and considering a water softner system but want to be sure I can use that water in my 55gal aquarium.

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    Yes, it's fine

  3. #3

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    Hi, I don't know what kind of salt water fish you have, but with my salt water fish it didn't bother any of them except for the Vulgarian Octopus. I had tangs, puffers, lionfish, small damels, everything was okay except for Otto. We had him in capitivity for 3 years and I still don't know if he died because of the softener or he needed his tank upped in size again. But, he started not to look well after the softener was added.

    oops, just saw yours is freshwater. Like Peter had said, it should be fine. Sorry.

  4. #4
    That's all folks! Gary Slusser's Avatar
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    I'd ask fish people with fresh water fish.
    Gary Slusser Retired (= out of business)
    Click Here to learn how to correctly size or program a water softener.
    CAUTION, as of Nov 12 2013 all YouTube videos showing how to rebuild a Clack valve have an error in them that can cause damage.

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    Hey Cookie, what in hell is a vulgarian octopus?
    I need a picture of that thing
    Can you eat them.... a little garlic butter, wrapped in bacon

  6. #6

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    No, you can not eat him, lol.

    He is a small greyish white octopus, very friendly. He would flash colors accordingly to his emotion. If you knocked on his glass he would either turn very white because he got scared, or red cause he got angry. If he felt threatend he would ink the water. Same with a door banging he would flash, so he either heard it or felt the vibration.

    They have a little egg tooth and will wrap around your hand or arm. He would eat frozen food or a goldfish which I wouldn't do. He was pretty neat.

    He was a birthday gift to me.

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    DIY Junior Member pulpfiction1's Avatar
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    you do not and i stress NOT want to use water from a softener in your fresh water tank, the ph and softness will be low but the KH will be through the roof,if your wanting soft and low ph water say for discus or other similar watered fish you will need to RO the water first.i am a discus and african fish breeder and you will not fair well with that water from a softener

  8. #8
    That's all folks! Gary Slusser's Avatar
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    Softening water does not decrease the pH, it slightly to moderately increases the TDS (total dissolved solids) and adds sodium to the water by 7.85 mg/l per grain per gallon of compensated hardness.

    IMO some/few? fresh water fish may be fine and others/most if I guessed may not. And it probably depends on how hard the water was before softening.
    Gary Slusser Retired (= out of business)
    Click Here to learn how to correctly size or program a water softener.
    CAUTION, as of Nov 12 2013 all YouTube videos showing how to rebuild a Clack valve have an error in them that can cause damage.

  9. #9
    DIY Junior Member pulpfiction1's Avatar
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    Quote Originally Posted by Gary Slusser View Post
    Softening water does not decrease the pH, it slightly to moderately increases the TDS (total dissolved solids) and adds sodium to the water by 7.85 mg/l per grain per gallon of compensated hardness.

    IMO some/few? fresh water fish may be fine and others/most if I guessed may not. And it probably depends on how hard the water was before softening.
    the salt in a freshwater tank does not go well with fresh water fish.period.the KH will be to high for most freshwater fish the require a lower ph,other that can tolerate the higher kh will require a higher ph .i breed discus and angels as well as african cichlids and like i stated freshwater fish will be too stressed in a salt softened enviroment.if you need more info i can supply hundreds of links to state the same.and true enough that softeners dont effect th ph but it does effect the kh and very high i might ad,i have to use and ro after i soften the water to put in with my south american fish or they wont breed,its can be true most fish will adapt but will but stressed the whole time shortening life span and higher risks to diseases
    Last edited by pulpfiction1; 12-18-2009 at 04:30 PM. Reason: add more

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    Moderator & Master Plumber hj's Avatar
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    Default fish

    The chlorine in domestic water supplies is usually worse on the fish than the sodium in soft water. I would use reverse osmosis water to get rid of all chemicals, then add whatever the fish like.

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    Master Plumber Redwood's Avatar
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    Hmmm

    I add salt to my fresh water tank

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    Moderator & Master Plumber hj's Avatar
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    You can also get a good flavor if you smoke the fish.

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    DIY Senior Member wallygater's Avatar
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    Default Fish

    My fresh water fish likes a little salt in his tank. He told me just a little bit though.
    wally

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    Master Plumber Redwood's Avatar
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    Quote Originally Posted by wallygater View Post
    My fresh water fish likes a little salt in his tank. He told me just a little bit though.
    Mine too!

    http://www.aquariumguys.com/aquariumsalt1.html

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    DIY Junior Member pulpfiction1's Avatar
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    Quote Originally Posted by Peter Griffin View Post
    some fish like a little salinity, others not and sometimes changing it can put fish into a breeding state of mind.
    id call that brackish not freshwater,what freshwater fish gets triggered into breeding by adding salt to the water?i realize there is lots of controversy as to adding salt (the marine type) to the water temorarily to help kill off some bacteria but have never heard it trigger spawning in freshwater species of fish.but if a person is addament about puttting salt in a freshwater enviroment, they are gonna,(the enviromental peeps actually call that polution,and have even outlawed softeners from entering a septic system in many juristictions for the same reason,harmfull to the enviroment)some people do confuse minerals in fresh water to the same as salt content but ill bet if you test any rainbow trout hole for salt (NaCI)you wont find any except on the table after it has been cooked.freshwater plants dont do well with salt in the water either.i could go on and on but i wont,its obvious some know very little about the hobby.

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