Help! plant toxicity or deficiency

Maryland Guppy said:

I did not notice Potassium(K) in the Tropica products.

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yes it doesn't say on the bottle however tropical specialised is npk and all micros

tropica premium is reduced k and micro

hello yes it doesnt say ,however tropica specialised contains npk and micros
tropica premium is reduced k and micros
got this information from there youtube channel comment section.

i have had a look at nitrate deficiency they don't seem very similar to mine (yellow leaves etc)
my leaves are pale in colour and slightly glassy but not yellow

i haven't really changed anything. maybe the plants just need increased fert dosage with growth ?
not sure..

however i have increased co2
and doubled npk ferts ,will monitor over the next few,

thanks for the replies.

if anyone knows anything else, or knows what this is would be gratful to all imput

thanks

some new picture of the hemianthus micranthemoides, have been dosing double the ferts for a few days now and haven't seen improvement ,there getting worst co2 has been bumped up to 3 bps gradualy.
as you can see the leaves appear unhealthy

Bump: sorry pictures are tilted

emilio246 said:

Lighting : high
CO2 : 1 bps

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Lower the light, raise it from the substrat/water surface or put a screen/mesh to block some of it. Lets see what happens. If the symptoms disappear it would mean underdosing of something, most like CO2.

Do you have a method to estimate the actual CO2 level in the aquarium ? pH KH? drop checker? bps is a very large approx.

emilio246 said:

I'm beginning to think it may be a micronutrient toxicity? is this possible ?
can you overdose tropica fertilisers?

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Well, let's look at these guys, straight from Tropica's website... they don't seem to follow Tropica's dosing guidelines:surprise: ( Rule breakers! Overdosers! )
Layout 105 - Pedro Rosa - Tropica Aquarium Plants
Some even do 10x the dose and I don't see any plants complaining.

emilio246 said:

i have had a look at nitrate deficiency they don't seem very similar to mine (yellow leaves etc)
my leaves are pale in colour and slightly glassy but not yellow
maybe the plants just need increased fert dosage with growth ?
not sure..

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Pale green is a form of yellow for us :smile2: The plant leaves do not have to be lemon yellow to indicate N deficiency. Slight discoloration and damage in old leaves is enough. The yellow tint can come from your light source, your water color, your camera calibration etc. So it is really hard to finely differentiate colors over the web without a grey card in there. I would say the plants need some trimming and of course more plant mass needs more food and more circulation to grow.

Frankly I do not see so much damage in your second set of pictures. So it seems you are on the right path.

Regards
duky

hello thank you very much for the reply ,

i have ruled out toxicity.
i don't use a drop checker.. however i have raised co2 to the point just before the shrimps gasp,

i have been told it may be a Mg defficenty due to my hard water so i will begin to add some extra mg tomorrow,
i have also heard that Fe may be getting cancelled out (reacting with the substrate) not sure what to do if thats the case.

Ether way i am definitely adding a good amount of nutrients (2.4ml a day).

Something in there is causing nutrients uptake difficulties,
not sure what it is, in
person it is very clear plants are not healthy,

thanks

hard water (high Gh) means that there is a good amount of Ca and/or Mg. However a little extra Mg should not hurt. I saw that about Fe in your previous posts but it does not seem too likely. Yes Tropica soil has high CEC but the Fe from Tropica fertilizer is well chelated and should stay available for plants for a days. It is not really reacting but clinging to ... kind of like lint to black velvet.

Are the transparent parts still on the new leaves ? Do the leaves recover or does the damaged part fall off ?

Here I have attached part of a photo I did for the new site (more in my signature). This was after one experimental exposure to "extreme" high light levels with reduced CO2 levels for 10h. Everything else in terms of nutrients was up there. Notice the dark leaf edges! Those are actually transparent. In this case plant is Proserpinaca palustris. This is why I suggested reducing the light a little bit to offset the CO2 or other nutrient demand from the plants. Then you have more play space to determine what exactly is causing the problems.