hardness for anubias??? - The Planted Tank Forum
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post #1 of 18 (permalink) Old 03-24-2017, 05:42 AM Thread Starter
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hardness for anubias???

I am using ro water to lower the ph until it reach 6.5-6.8 for my dwarf cichlids but I am sure the kh will going to be lower as well so I am wondering if that could be too soft for anubias?
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post #2 of 18 (permalink) Old 03-24-2017, 06:04 AM
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You can have Anubias at KH~0° dKH. That being said, in tank without CO2 injection they tend to do better when they can use the carbonates (KH) to get CO2. They are some of the few aquarium plants which can do this. A low GH (<3°dGH) would be more likely to cause problems.

If you plant to continue to use RO water to lower your KH, I would strongly recommend getting a GH and KH test.

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post #3 of 18 (permalink) Old 03-24-2017, 09:54 PM Thread Starter
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I have API kh test kit but I dont have the gh one but will purchase one soo . So dont never let the gh drop below 3?
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post #4 of 18 (permalink) Old 03-26-2017, 01:13 AM
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Basically yes. It would be more safe with GH ~ 5. You can use a remineralizer product targeted for Crystal Red Shrimps, like Shrimp King GH+ or Salty shrimp. This will only increase your GH and not your KH.

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post #5 of 18 (permalink) Old 03-26-2017, 01:40 AM
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Hi Cookie_discus,

Most Anubias species are terrestrial or semi-terrestrial growing along the waters' edge. That said they can be grown submerged without CO2 but they will grow more quickly with CO2. All plants need calcium and magnesium as nutrients for proper growth so some water hardness is necessary. I agree with dukydaf that a 5.0 dGH is probably a good target number; you should be able to grow both soft and harder water species with that amount of hardness.

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post #6 of 18 (permalink) Old 03-28-2017, 09:54 PM Thread Starter
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Ok I will try stable the GH at 5 by mixing a little bit tap water with the ro water or I just get something like GH plus. Those GH plus they dont increase KH and PH? By the way I do have feed my fish once a day so do I need to add any nutrient on the side?
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post #7 of 18 (permalink) Old 03-29-2017, 02:32 AM
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Originally Posted by Cookie_discus View Post
Ok I will try stable the GH at 5 by mixing a little bit tap water with the ro water or I just get something like GH plus. Those GH plus they dont increase KH and PH? By the way I do have feed my fish once a day so do I need to add any nutrient on the side?
Shrimp King BeeSalt GH+ or SaltyShrimp Bee Shrimp Mineral GH+ are designed for shrimps that also like KH~0 and a lower pH, thus they will be what you want.

On the nutrient side of things it is harder to answer. If the anubias and other slow growing plants ( java fern, bucephalandra etc.) are the only ones present in the aquarium and the light level is low,you can likely omit the extra fertilizer. A small dose of trace fertilizer with extra K (Potassium) once a week might be enough

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post #8 of 18 (permalink) Old 03-29-2017, 10:33 PM Thread Starter
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Shrimp King BeeSalt GH+ or SaltyShrimp Bee Shrimp Mineral GH+ are designed for shrimps that also like KH~0 and a lower pH, thus they will be what you want.

On the nutrient side of things it is harder to answer. If the anubias and other slow growing plants ( java fern, bucephalandra etc.) are the only ones present in the aquarium and the light level is low,you can likely omit the extra fertilizer. A small dose of trace fertilizer with extra K (Potassium) once a week might be enough
Yes Anubias is the only specie plant I do and my light is just the current usa freshwater satellite which is only 15W in total with white and blue light but I only use the white light and dim it to around 70-80% power. I am wondering if API Leaf Zone will going to work for the extra K and iron?
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post #9 of 18 (permalink) Old 03-31-2017, 02:02 AM
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I don't know the conc of API Leafzone but it seems to cover those, minimal fertilization is enough.

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post #10 of 18 (permalink) Old 04-01-2017, 09:42 PM Thread Starter
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I don't know the conc of API Leafzone but it seems to cover those, minimal fertilization is enough.

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Any other brand is good?
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post #11 of 18 (permalink) Old 04-02-2017, 12:08 AM
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Frankly for Anubias only I would not bother with fertilizers, they get most of what they need from the fish food/metabolism and water changes. If you have specific problems it helps to know which problems and remedy only those.

However if you want to be sure and an easy way, you could get Seachem Flourish, JBL Florapol ( also has a lot of K and traces), Easy Life line or Tropica Plant Fertilizer. You could also make your own solution for K from K2SO4. As Anubias are mainly slow growers, I do not see there is a risk of running low on traces really.

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post #12 of 18 (permalink) Old 04-02-2017, 11:58 PM
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I don't think you need to add traces because the Anubias will get that from water changes. You should pamper them with micro nutrients and add some Potassium Sulfate or Potassium Chloride. I get a Potassium deficiency in my Anubias when I don't add K. I add 1/8 teaspoon per 20 gallons Potassium Sulfate 3 times a week. This eliminated my problem with holes in leaves. Dustin at Dustin's Fishtanks says his friend Scott melted his Anubias with water that was too soft. I wouldn't worry about traces, Nitrate or Phosphate. Just add micros and some Potassium and don't let the water get too soft.
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post #13 of 18 (permalink) Old 04-03-2017, 12:22 AM
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I grow anubias in water of PH6.6 and a KH3. It grows great and flowers frequently.
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post #14 of 18 (permalink) Old 04-04-2017, 05:38 AM Thread Starter
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So I just need something like Seachem Flourish Potassium? For trace which is something like Seachem Flourish right? Also what about iron, do I need to worry about that?
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post #15 of 18 (permalink) Old 04-04-2017, 07:50 AM
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Seachem Flourish has Potassium, iron and traces. There are also very small amounts of Nitrogen and phosphate. So seachem Flourish alone is enough, maybe you could 3ven get by at half the recommended dose

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