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| The plant versus salt test was run over a period of 6 weeks. The test was run TWO separate times to ensure validity. Healthy, actively growing plants were set in a 600-gallon stock tank. Aeration was added to make sure that the salt was evenly distributed throughout the tank. Salt was measured once a week using a refractometer and LaMotte salinity test kit. Each plant was physically removed from the tank and inspected before the next level of salt was added. Water was replaced as need because of evaporation and the salt level then adjusted for that period. Every 2 weeks more salt was added to bring the level up another 0.1%. The purpose was to see what plants needed to be removed from the pond when adding salt. Many ponders run 0.1% salt in their ponds routinely for general health of the fish.
The letter "D" in each box represents the level of salt at which the plant died. I increased the salt by 2-week periods because it is generally recommended that salt be put in the pond for a minimum of 2 weeks in the case of parasites. What I was looking for is what plants that can tolerate 0.3% for a period of 2 weeks or more. I have also included notes for specific plants.
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| Anacharis |
D |
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| Arum - Calla |
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D |
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| Bacopa |
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D |
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| Blue Bells Chic-Chi |
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D |
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| Bog Bean |
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D |
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| Bog Lily |
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D |
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| Button Bush |
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D |
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| Canna |
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D |
Top die back @ 0.5% |
| Cat Tail - Graceful |
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D |
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| Cat Tail - Mini |
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D |
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| Cardinal Flower |
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D |
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| Cotton Grass |
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D |
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| Duckweed |
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D |
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| Fairy Moss |
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D |
Turned brown but did not die @ 0.5% |
| Floating Heart |
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D |
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| Forget-Me-Not |
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D |
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| Frog Bit |
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D |
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| Hibiscus |
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|
D |
Top die back @ 0.5% |
| Hornwort |
D |
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| Houttuynia |
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D |
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| Iris* |
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D |
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| Lavender Musk |
|
D |
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| Lizards Tail |
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D |
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Top die back @ 0.4% |
| Lotus |
D |
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| Manna Grass |
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D |
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| Papyrus, Dwarf |
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D |
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| Papyrus, Egyptian |
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D |
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| Parrots Feather |
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D |
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| Pickerel Rush |
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D |
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| Perennial Rice |
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D |
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| Primrose Creeper |
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D |
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| Rush, Blue |
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D |
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| Rush, Striped |
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D |
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| Rush, Zebra |
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D |
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| Sensitive Plant |
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D |
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| Star Grass |
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D |
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| Sweet Flag |
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D |
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| Taro - Black Magic |
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D |
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| Taro - Green |
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D |
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Top die-back at 0.3% |
| Thalia delbata |
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|
D |
Top die back at 0.5% |
| Umbrella Palm |
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D |
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| Water Baby's Breath |
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D |
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| Water Celery |
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|
D |
Top die back at 0.5% |
| Water Chestnut |
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|
D |
Top die back at 0.5% |
| Water Clover |
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D |
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| Water Clover, Variegated |
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D |
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| Water Fringe |
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D |
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| Water Hyacinth* |
D |
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| Water Lettuce* |
D |
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| Water Lily |
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D |
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Top die back at 0.4% |
| Water Mint |
|
D |
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| Water Snowflake |
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D |
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| Additional Comments - This is what the hobby has required. The ability to reliably forecast the survival or loss of plants in the face of salt regimens. I admire and appreciate the investment of time and money in this project by Bonnie Hale - Doc Johnson |
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