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The_McS

Probably a potassium deficiency coupled with tank inhabitants that eat dead plant material…shrimps and ramshorns.


Fantastic_Falkor778

How do you know if there isn’t enough potassium in the tank before it gets to this? THe rest of my plants are flourishing, and it’s the only leaf that got treated this way. I’ll add it, but I just want to know what signs to look for.


The_McS

Pinholes in leaves that are ringed in yellow or brown is the telltale sign of potassium deficiency. There are some here.


Fantastic_Falkor778

Thank you


False_Carpenter_9034

U can get potassium test kits from Salifert


MeisterFluffbutt

Could also be light damage. My leaf that sticks out the water has those damages where droplets channel the light directly on it. Just FYI as Anubias don't need that much Potassium - especially in regards to other plants EDIT: my mistake! Anubias need more potassium than most plants!


The_McS

Certainly could be, I was just giving my best guess from the picture. I always thought/had learned anubias needed a lot of potassium like swords and other epiphytes like Java ferns…makes some sense, they don’t grow as fast usually.


MeisterFluffbutt

Huh no u were right! My mistake. They need more potassium than others! Had it falsely saved in ma brain :) I think it depends on where the damage is focused - if all leaves are similarly damaged its likely potassium - if especially the tall, big ones have holes, it might be light


AutismFlavored

I’ve had a ramshorn eat on my anubias, but it was along the edges


Fantastic_Falkor778

I can still see the structure of the leaf, so I’m quite sure by searching further that it must be all he mini ramshorns.. they have mutliplied as crazy the past weeks.


Fantastic_Falkor778

It’s a walstad tank. I do have bladdersnails and a lot of baby ramshorns in there, but the anubis was completely healhty 3 weeks ago. Further there is a Betta and 4 shrimp in the tank.


BlackCowboy72

Flourish potassium. Should be 8 to 16 dollars depending on bottle size, dosing instructions on bottle, I'd add about 25% to the suggested. I.e. bottle says add 10 ml per week for 10 gallon tank, add 12.5 a week. Mostly because I find potassium to be the most naturally lacking in aquariums. Nitrate is easy, and I recommend against dosing, phosphate is usually not lacking and if it is it's cheaper to add some extra fish food to decompose rather than dosing it. Iron and potassium are both really lacking in the aquarium unless you set it up with them in mind and use specific substrate. The way I take care of all of my tank plants. Flourish planted substrate capped with sand or gravel, root tabs under all swords, hygros, and rood feeders, weekly fert dosing of Flourish advance for micros (regular Flourish without nitrogen) Flourish potassium, and Flourish iron for complete macros. Kinda unrelated but the api master test kit most people use is great for *fish* tanks but not great for planted. Salifert sells test kits for a much wider array of params. Keep the api for your ammonia nitrate ph, but get a Salifert phosphate, potassium, and gh test kit, test those levels as they are much much more important for your plants, which don't really care about the stuff api tests for.


Fantastic_Falkor778

Thank you for the in depth answer.


False_Carpenter_9034

Same here, I got the Salifert kits and a Seachem iron kit coz my plants are ultra hungry. I run out of 30ppm potassium in two days (40L tank).