Hi,
Yes, I dosed 5X everything, including micros. At the same time I wanted to disprove the entire "...Hard water is bad for plants..." propaganda so I raised the KH to 15 or higher and raised the GH to 26 or higher. Kept it like that for couple of years. No problemo.
LondonDragon miscalculated and dose 10X of everything, including micros. A few months later he woke up and adjusted it back down to standard levels. What's the big deal?
The key has always been keeping the tank clean. Nutrient/CO2 input yields extra Oxygen output by the plants. The plants produce massive levels of organic waste which has to be removed via massive water changes. I hate doing water changes, but I change more water than anybody I know - 90% sometime a couple times a week. That removes a LOT of DOC and keeps the fish healthy. So they can resist water parameters that are less than optimal such as high KH/TDS. Oxygen and cleanliness has an incredible impact on the system's health. Fish resist pathogen attacks and plants resist algal attack.
People are misled all the time about Calcium interfering with Magnesium and other metals. It's all rubbish because plants uptake nutrition through their leaves. All that interference talk has to do with what's happening in the roots of land plants where it is a problem. Land plants do not have nearly the capability to uptake micronutrients by the foliar method. The construct of terrestrial leaves is completely different than aquatic. That's why when you buy a new plant grown terrestrially in a nursery and then dump them underwater they struggle because those leaves and roots must change their physiology quickly or perish. Water changes everything...so the whole formula of how ions and molecules diffuse across the leaf membrane and across the roots is entirely different.
Did you realize that all the trees in the Amazon - even hardwoods trees like Mahogany, Rosewood and Fig - are actually aquatic plants? When the rain forest floods, the trees are inundated with water, maybe up to 15 meters high. The roots of the trees undergo a major physiological change in order allow Oxygen to reach down and to be distributed under water.
People are so programmed to fret over nutrients and they miss the more important aspects of survival, which is gas exchange.
Never worry about this metal or that balance or that ratio. The plants always figure it out and they have mechanisms to counter toxicity. They have very limited ability however, of countering suffocation.
The OP is also advised to clean the leaves of his plants using his fingers to wipe of the biofilm check this post
https://ukaps.org/forum/threads/algae-problems-help-please.6331/page-2#post-72428
The biofilm covering all submerged surface is where a lot of algae live, but more importantly, this film, as thin as it is, acts as a major barrier to the diffusion of CO2 and Oxygen across the leaf membrane. Your CO2 will be more effective if these leaf surfaces are kept clean. Grated, carpet plants are difficult to clean but any algae or debris can be cleaned using a toothbrush twirled to catch the filaments and to drag them out.
Cheers,
Makes me feel a little better that I’m doing the right things and in the right direction 
