Deficiency help - The Planted Tank Forum
 
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post #1 of 10 (permalink) Old 05-25-2020, 05:03 PM Thread Starter
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Deficiency help

Hello. I am seeing a new issue in a couple of my tanks that appear similar in appearance on two different plants. Both are on new growth leaves. One is on an Anubias cogensis, the other a Cryptocoryne parva. Both have chlorosis, with slight reddening on the leaves. I use tap water with SeaChem Safe and Stability on water changes. Fertilization is SeaChem Flourish line using their dosing chart, with an increased level of Flourish Potassium. Neither tank is C02 injected.
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post #2 of 10 (permalink) Old 05-27-2020, 05:44 AM
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What are your nitrate and phosphates readings? Fluorish has almost none of those elements.

Also what are your tap waters GH?
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post #3 of 10 (permalink) Old 05-27-2020, 01:03 PM
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Are you sure the first plant is parva?


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post #4 of 10 (permalink) Old 05-27-2020, 11:54 PM Thread Starter
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Thanks for the responses! My nitrate sits around 15ppm using multitest test. Phosphate is around 0.1, also using multitest. GH in the tank is around 6, dKH is around 5. I use saltyshrimp GH/KH for the neos in the tank. As far as if I'm sure it's parva, no. It was an addition from someone about a year ago. Grows new plants inside the main root ball. Looked like parva to me, but I'm no expert in that area. As this trend continues with the leaves, it looks now like maybe an iron toxicity / magnesium deficiency issue? The older leaves are bright green with darker center. New leaves green center, red/brown edges as shown in picture. Does this sound right? As far as I can tell, Flourish Comprehensive is the only fert that has magnesium in it.
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post #5 of 10 (permalink) Old 05-28-2020, 12:45 AM
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I believe the plant might be Crypt Lucens (similar but larger than parva). It grows that way with a reddish/rust color on it. It's not a deficiency. What is your substrate?


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post #6 of 10 (permalink) Old 05-28-2020, 01:14 AM Thread Starter
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It's a pretty small plant but maybe. None of the others have ever had new growth like this, hence my concern. The substrate is Amazonia about a year old with root tabs. Attached is maybe a better photo of the Crypt.
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post #7 of 10 (permalink) Old 05-28-2020, 01:30 AM
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Yeah, i don't believe that's a deficiency just a result of the conditions. is it low-tech or co2? With aquasoil plus the tabs very unlikely you would have a fert deficiency. I've grown lucens like that and some of the leaves had that coloration.

Also, it's planted very deep. Looks like it should be pulled up some.


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post #8 of 10 (permalink) Old 05-28-2020, 02:14 AM Thread Starter
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It's low-tech right now. The plants in this tank plus some now ones will be going into a 60U which will be very high energy shortly. I just want to make sure they are healthy before I relocate them. I'm still pretty sure they are parva, they look bigger than they are, the tank is only 4g. Leaves just over an inch long after a year or so.

The new tank will have a boatload of pteropus, buce, and anubias, Piptospatha ridleyi, these Crypts, some pink flamingo crypt, Lilaeopsis mauritania, Alternanthera lilacina, H. diformis and pinnatifida, a full stand of mini R. macrandra, and more. I have CO2 and a UNS Titan for the lighting with a good canister filter. This is why I'm really interested in making sure I have my fertilisers down.
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post #9 of 10 (permalink) Old 05-28-2020, 02:27 AM
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Sounds like a nice setup. The plant looks healthy to me. If your using aquasoil you really only have to add K and micros for the first year as the soil should be enough. The link in signature is my all Epiphyte tank.


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post #10 of 10 (permalink) Old 05-29-2020, 12:03 AM Thread Starter
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I recently noticed that my PO4 was very low, ~0.1. I added some today to get it up to 1ppm to see what that does.
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