Brown spots on leaves

  • larch
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larch created the topic: Brown spots on leaves

Hey guys, got a bit of a newbie question my Amazon swords arent doing well in my Oscar setup I have been adding 1 cap full of Seachem Flourish each week after my weekly 50% water changes. Some of the leaves have now developed brown spots on them, its not algae but it looks like the leaves are basically dying of something. Any idea what the cause may be? Also it only seems to be affecting the old leaves and not all of them here is a image:
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Noddy replied the topic: Re: Brown spots on leaves

when i still had the same plants, the same thing would happen.
Just leave the leafs until the plant has adsorbed over 50-60% of the green, and thus the most reusable substances, and new sprouts will come out of the middle of the plant.
That's just the way this plant grows,imo.

Just cut the brown leafs short, once they have given back their nutrients to the rest of the plent.
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larch replied the topic: Re: Brown spots on leaves

I spoke to a couple of people who know their stuff when it comes to aquatic plants and they said that leaves that look like this typically suffer from an iron deficiency, so they recommended that I buy myself some Seachem root tabs. And they also told me I can insert a metal nail next to the plant roots which will help. Will report back my findings soon.
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STAFFIE replied the topic: Re: Brown spots on leaves

Have the same with my java ferns.. was told to trim the really bad leaves and wait it out..

They should come back with time to adjust to your water.
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Noddy replied the topic: Re: Brown spots on leaves

i suppose you should follow the others advice, for i only had the ferns when i started in the hobby.
I held them firmly in the ground by a bunch of rocks.
But still they got uprooted.. :blink: :blink: :blink:
Turned out 3-4 fish would go at it at the same time, and were moving the rocks together.
Not kidding you. :laugh:
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larch replied the topic: Re: Brown spots on leaves

Noddy wrote: i suppose you should follow the others advice, for i only had the ferns when i started in the hobby.
I held them firmly in the ground by a bunch of rocks.
But still they got uprooted.. :blink: :blink: :blink:
Turned out 3-4 fish would go at it at the same time, and were moving the rocks together.
Not kidding you. :laugh:


Sorry I did not want to make it sound that I did not take your advice, but the people I spoke too on the local aquatic plant forum knows there stuff as evidence by there tank setup's:
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Graeme76 replied the topic: Re: Brown spots on leaves

Pretty good advice from the other people except for the part about adding the nail. Echinodorus are heavy root feeders & recieve very little benefit from liquid fertilizers. The Seachem Root Tabs that were recommended to you will see the Swords take off. If you really want to boost the amount of iron they are getting then I would go with API Root Tabs as they have a very high iron content but they don't contain the minor nutrients that the Seachem ones do. Personally I use both under all my Swords. Also keep in mind that Swords are actually med-high light plants, not low light like many people believe so if your plants are not recieving enough light, that could be a contributing factor here.

Adding nails into the system is just a bad idea, period. I've know people that have tried this method & every single one of them has ended up with fish health problems soon after. Just stick with the root tabs & you will be fine.
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larch replied the topic: Re: Brown spots on leaves

Graeme76 wrote: Swords are actually med-high light plants, not low light like many people believe so if your plants are not recieving enough light, that could be a contributing factor here.


Well I am running x2 30 watt T8`s @ 12 hours a day and the tank get natural sunlight from the window (not direct). So you suggest I should get the API root tabs too then? Also should I stop using Seachem Flourish?
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Graeme76 replied the topic: Re: Brown spots on leaves

Either the Seachem or API tabs will serve you well. I've used both & had excellent results from both. Because Swords are such heavy feeders though I use a combination of both tablets for them & just the Seachem ones for all my other root feeders like Crypts. What size is the tank? (dimensions not volume please). I need to know that before I can comment on your light levels.

Wether or not you need to keep using Seachem Flourish Comprehensive depends on what other plants you have. If you have lots of plants that get thier nutrients from the water column like Anubius, Java Fern etc you might need to continue using it but it really depends on how many of what kind of plants you have & how heavily the tank is stocked. If you give me a rundown on exactly what plants you have (post pics of any you don't know the names of) & how many of what fish (& what size) you have, I will be able to get a better idea of wether or not you need to continue with the comprehensive or if the fish wastes alone will be enough for your water column feeders.
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larch replied the topic: Re: Brown spots on leaves

Graeme76 wrote: If you give me a rundown on exactly what plants you have (post pics of any you don't know the names of) & how many of what fish (& what size) you have, I will be able to get a better idea of wether or not you need to continue with the comprehensive or if the fish wastes alone will be enough for your water column feeders.


Ahaha that's pretty easy I guess it is a 50 Gallon tank with a single 15 cm Oscar in it. The lighting is two 30 watt T8`s running 12 hours a day, I also have a night light 10 watts that runs during the night. As for the plants only ones that seem to work with my Oscar is Amazons. They are about 8-10 cm's tall at the moment.
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