These are the negative growth patterns I've observed with my plants:
Rotala sp. "Green" has stunted for the past few months. It grows very, very slowly, slower than it has ever grew, and new growth is small and some are twisted/deformed. It's the typical complaint that you see in a lot of threads around the web.
Rotala sp. "H'ra" has recently, in the past couple of months, stunted with similar growth patterns. It used to grow much better.
Only Rotala sp. "Ceylon" displays mostly normal growth. Sometimes, the leaves grow crinkly, but mostly it grows normally.
Rotala wallichii and Ammannia pedicellata are stunted. New growth turns black and dies back. I've not been able to propagate these plants at all, still with the one original stems in the tank. R. wallichii used to grow amazingly well in another tank with almost no dosing.
Eleocharis parvula grows very slowly, almost as slowly as Lilaeopsis sps. BBA grows on its tips.
H. pinnatifida has had chronic pinholes, symptoms of K deficiency that it seemed like no amount of added K prevented. I hypothesized that the amount of micros were damaging the K+ uptake channels, inducing K deficiency.
Ludwigia ovalis and L. repens X L. arcuata both recently had slight curling, deformed new growth. I can confirm this had nothing to do with CO2, macros, light or anything else other than an increase in micros and a decrease in Ca and Mg.
The slow growth is very much a conundrum as plants used to grow much faster, requiring near weekly trimming over a year ago. The major dosing change is that I've increased micros, while reducing macros.
The plants that seem to do fine: Bolbitis, Anubias, Taiwan moss - seem to grow faster than before so these plants may be much more tolerant of trace elements.
Limnophila aromatica, Glosso, and some others don't seem to be affected.
About the animals, I've noticed that every time after a water change, fish and shrimp are much more active. They progressively get more sluggish as the week goes on. I suspect that the high levels of certain metals have induced chronic health issues.
I've added some of the aquarium water to my daphnia cups. This amounted to less than 1% of the total volume. However, the water caused the daphnia to produce egg sacs, a sign that the water quality is high in metals, which they are sensitive to. I've been able to consistently repeat this a couple of times so the micros definitely cause health issues.
Last edited by Solcielo lawrencia; 10-25-2015 at 07:16 PM.
Reason: Added info