Mmiller2001

I would increase water changes and dose more Easy Green. Tanks where nitrification is making up your NO3 levels typically have problems. If this was my tank, I'd increase water changes to 50% a week and dose Easy Green at 12ppm NO3 (as Proxy) a week. Remember, these fertilizers are more than NO3, they have P, K and Traces. So, when we hold back on dosing, because our NO3 is high, we then under dose P, K and Traces. Water changes removes nitrified NO3, soluble and insoluble organics allowing us to dose proper fertilizer amounts without exceeding certain targets. Use this table to help target dose Easy Green. I would start on the leaner side; say 15 pumps a week (after each water change).

We need more information. pH? GH? KH? Ammonia? Nitrites? How many Gallons? How much Easy Green are you using? What kind of light? How long is the light on? How much and how often are you doing water changes?

I'm 100% in camp Medicate no matter what. We medicate our kids, dogs and cats, and I see no reason to not include our fish.

Root tabs are not necessary. Just proper tank balance and water column dosing is all that's needed.

Awesome!

The opposite 😁.

0dKH is not a problem especially if you keep appropriate fish (soft water fish). PH swings are also not a problem when GH and KH are kept stable. Crushed coral and Wonder Shell raise both GH and KH. Personally, I would stop using them.

As @Seattle_Aquaristmentions is the problem. Too much light with too little nutrients. Follow his advice. I'm in camp "don't use root tabs" as they are often a mystery or leach unknown amounts of nutrients. Also, if you are using Landen Soil, there's no need to use root tabs, it has plenty of nutrients for your plants.

What fertilizer are you using?

I would still be dosing regardless of a nitrite spike.

It could be Echinodorus Reni

This is the moment when dry fertilizers start to make a lot of sense. Being able to individually increase ppm at an exceptionally low cost is the route I would start looking at.

Nymphoides hydrophylla 'Taiwan Lobelia Cardinalis (looks like it) Could be Hygrophila Serpyllum in low light. But I think its the above.

I had K problems too when using K2CO3, I didn't even dose K2SO4 while using it. Best thing I ever did was move my tanks to 0dKH. Everything just got "better". I'm still waiting for the mysterious "pH crash" everyone likes mentioning 😁. It's 100% false, definitely a wives tale. And boy, do plants love that low pH! I'm having trouble getting my tank below 5.0pH though. I might go back to an on-line reactor!

Unless you really are wanting to, I would not go out and waste money on all these kits. It's easier to calculate what is going into the tank and just us5 water changes to control the totals. Learn what ppm you are dosing and keep track of those numbers.

How old is the tank? How did you acclimate the fish? What is the tank temperature?

Well, we might try raising the other micros and that's just Iron. Try just a bit more APT.

That could be the problem. Do you know the chelation in ATP?

I just looked it up. 4 doses is .2ppm Fe proxy. It should be just fine. As far as copper and shrimp, I'm not sure. I'm dosing copper in all my tanks fish shrimp. I'm using .4Fe as proxy.

What's the pH of the tank?

I'm not the greatest with terrestrial plants. That said, I'm pretty good with certain "medicinal" plants and if I saw this happening, I would check pH and make sure it was about 6.5. I'd look for any root damage or conditions that would cause root damage. If those parameters are okay, I would suspect a micro element deficiency, maybe manganese, zinc or Iron.

Where they at the top of the plant or at the bottom?

I thought that was interesting too. But I'd imagine some sciency stuff explains the relationship that I wouldn't understand. 😁

I would toss it and only "invite those who enjoy the soup you serve."

Here's a chart of Nutrient to plant mass (dry mass composition). I think enough sulfur is in tap water to cover most needs. However, when using RO water, you have to dose it and it is available in various packages. CaSO4, MgSO4 and K2SO4.