Mollies and Salt

3 Jan

Another reminder about Mollies. They do well with salt added to their water. It would be best to make their tank a brackish water tank, maybe one-fourth as salty as a marine aquarium but that can cause other difficulties. Plants don’t do as well in brackish water and you are also very limited to other fish that like brackish water.
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To make it simple I keep my Mollies, both Silver and Black, in a tank full of Hornwort and Java Moss (and Duckweed and Water Lettuce on the surface).
I add a LITTLE salt.
How much?
I don’t know. Not much.
How much is that?
Umm…maybe a tablespoon per ten gallons.

Over time the tank will get less salty because of water changes. I occasionally add more salt.
How much?
I don’t know. Not…
Don’t start that again!
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A little salt and the plants are fine, the Mollies are incredibly active and disease-free. They live with some Endlers Livebearers (OK, Guppies!). Other good tankmates are the Platies and Swordtails.
Don’t use table salt. Use salt made for marine aquariums or the salt labeled Aquarium Salt. Don’t keep your mollies in soft water, they prefer hard water with a relatively high pH, like the African Cichlids.

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2 Responses to “Mollies and Salt”

  1. becomingcliche January 4, 2013 at 8:26 am #

    Mollies are hard to keep well. At the aquarium shop, we would cycle brackish aquariums with mollies in them. Those were always the healthiest mollies we had. It’s funny to me that they are sold so often as straight freshwater fish.

    • fishtanx2011 January 4, 2013 at 5:52 pm #

      I don’t have any hesitation in recommending a little salt to help fish keepers keep their Mollies alive, but you should see the controversy about it on the Internet! You and I both know from experience that it helps.

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