Moneywort turning black :(

[SpeedyFish]

Hello All,

I'm having problems with my moneyworts. I had them in my tank for a year and they look good, but now they don't look good. All the sudden i noticed the stem start turning black on some of the plants and now it's spreading to other plants. At first I thought it was black algae and took one of the plants out and try to remove it, but it seem to be the plant itself. I have no clue what us causing it. My parameters are 0 ammonia, nitrite, and 30 nitrate. I using a Satellite LED Plus for 10 hours setting at Full Spectrum.

 

[PeterFishKeepin]

Hi, do you use any fertiliser for the plants? Perhaps it needs some to encourage it to grow more

 

[SpeedyFish]

I use flourish once a week only when I do a water change. Do I need to add more during the week?

 

[PeterFishKeepin]

Perhaps some root tabs I'm not too sure but somebody else would be able to help further, meanwhile maybe search fishlore webpage for plants turning black or something like that

 

[SpeedyFish]

I added some root tabs last week. Hopefully that will help. I checked the forum and I mostly see for black algae. I think I might have an issue with either too much or too little particular nutrient.

Final check if it's really black algae. If I take a plant out and examine it how to tell is it's black algae? Does black algae scrap off leaves?

 

[Nopsu]

Phosphate deficiency might be cause of necrosis on leaves. Flourish does not contain much macros (nitrogen, phosphate, Kalium-potassium), mostly micronutrients.
If you have low bioload compared to the amount of plants and your plants have grown over the year to consume more than your tank has to offer they start to show deficiency symptoms. Stem plants are usually first to show signs. Also you probably have quite a lot of light with your led and long lighting period to increase the need for more nutrients. Maybe consider dosing phosphorus or other fert containing macros on top of the flourish

 

[SpeedyFish]

Thanks. I think that's the problem I'm having. Phosphate deficiency seems to affect stem plants a lot faster than other plants. To bad some of my moneyworts are probably to far off to be saved.

I’m sure if I may have a deficiency in Phosphate I will have it in other macro nutrients.

What would be the best product should I buy to compliment with Flourish?

 

[Nopsu]

Thanks. I think that's the problem I'm having. Phosphate deficiency seems to affect stem plants a lot faster than other plants. To bad some of my moneyworts are probably to far off to be saved.

I’m sure if I may have a deficiency in Phosphate I will have it in other macro nutrients.

What would be the best product should I buy to compliment with Flourish?

I am using Tropica specialised with flourish
I'd start off with one pump 1-2x week and see what happens for 2 weeks. If they stop turning black and no algae issues come up you can keep the dose.

 

[dcutl002]

Probably multiple nutrients, but looks like phosphates.
Plant Deficiency Picture Diagram

I recommend fertilizers that are separate like this (available on Amazon): NA Macro & Micro Liquid Aquarium Plant Fertilizer

 

[SpeedyFish]

Probably multiple nutrients, but looks like phosphates.
Plant Deficiency Picture Diagram

I recommend fertilizers that are separate like this (available on Amazon): NA Macro & Micro Liquid Aquarium Plant Fertilizer

I ordered this since it has higher dose of nutrients my plant need, but I noticed it has copper. Will this harm my amano shrimp?

 

[dcutl002]

That is a good question. Since I have never kept shrimp, I took liberty to research your inquiry. It appears that you will be okay fertilizing your plants providing that you follow proper dosing instructions.

You can get a Copper Test kit to be on the safe side.
https://www.chewy.com/api-copper-cu...ontent=Health & Wellness-Fish Water Test Kits


Fertilizing and Shrimp Care
Will copper from fertilizers hurt my shrimp or fish?

Is Copper Safe For Shrimp? – Blue Ecosystems

https://aquariumbreeder.com/how-copper-affects-dwarf-shrimp/