Plants starting to deteriorate- help!

Damien

New Member
Joined
9 Mar 2019
Messages
9
Location
England
Hi,

I’m new to UKAPS, but I’ve been reading the forums for a while. I’ve got a 20l nano set up that’s been going for about 3 months now. At first everything seemed to be going fine, but these past two weeks I’ve noticed the plants slowly deteriorating. At first it was the salvinia and amazon frogbit that started to go mushy and die.

I’ve got the standard aquael plant LED on for 8 hours a day. A co2 chamber that’s filled twice a day which keeps the drop checker at green.

I had been dosing Flourish, Flourish trace and excel on seperate days. Along with iron and potassium once a week. All doses as per the recommendations on the bottles.

Up until the last few weeks the plants had been doing well, mosses were growing, Monte Carlo has carpeted and the floating plants were multiplying in abundance.

As mentioned now the floating plants aren’t doing well and also my s repens are turning yellowish.

From my test kit I’m getting the pH of 6.2-6.4 (I have got jbl shrimp soil), ammonia 0, nitrites and nitrates 0. And this has been over the past few weeks pretty stable. Water change of about 15% once a week.

Animal wise I have; 5 CRS shrimp, 6 Neocaridina (yellow), 2 Pinocchio Shrimp, 1 small Rabbit snail and 5 least rasbora - so not too much as it’s only a small tank.

I’m not sure if maybe the plants are lacking phosphorus/ nitrogen as these have not been added yet and reading about the symptoms I’m seeing might be caused from that.

I’ve attached a few pictures below if anyone has any thoughts/suggestions on things to try?

Thanks

Damien
 

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Damien

New Member
Joined
9 Mar 2019
Messages
9
Location
England
Thanks Edvet. I’ll start dosing with these and see how things go. Just don’t want the tank to crash and get it sorted before it gets too bad
 

dw1305

Expert
Joined
7 Apr 2008
Messages
10,693
Location
nr Bath
Hi all,
I’m not sure if maybe the plants are lacking phosphorus/ nitrogen as these have not been added yet and reading about the symptoms I’m seeing might be caused from that.
Lack of nitrogen (N) looks likely, <"based upon leaf colour">. It could also be phosphorus (P) or magnesium (Mg). Plants need a lot more nitrogen than they do phosphorus and a lot more phosphorus than they do magnesium.

Nitrogen (N), magnesium (Mg) and phosphorus (P) are all mobile within the plant, so you should get fairly quick greening of the leaves when you add them.

cheers Darrel
 

Damien

New Member
Joined
9 Mar 2019
Messages
9
Location
England
Thanks Darrel,

I went and purchased some Nitrogen and Phosphorus yesterday and started dosing.

Getting some Magnesium Sulfate today so I can add that too.

Plants seem to have gone worse over night and looks like it’s speeding through the Monte Carlo and floating plants.

Would you suggest removing them (floating plants) before they all turn?
 

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Fiske

Member
Joined
5 Oct 2016
Messages
323
Location
Denmark
Always a good idea to trim dying leaves, and remove dead plants. On the whole your plants looks mostly fine, based on pictures, so don't go overboard;) Give it a few days of dosing and just remove obviously dead plant material.
 

HiNtZ

Member
Joined
26 Jan 2016
Messages
578
Location
London
Thanks Darrel,

I went and purchased some Nitrogen and Phosphorus yesterday and started dosing.

In what form is the N & P?

And, are you dosing your potassium already contained in your iron, or are you dosing K seperately?

Me personally I'd leave some floaters - they'll help you understand if nutrient levels are adequate without injected CO2 being an influence (in case you're slightly off on gas)
 

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