There is potassium (K) in both their TPN and TPN+ products. Here is the breakdown of TPN+ from the Tropica website.
Some people have clouding problems whilst others don't. There are too many factors like light, water compostion, etc to say for sure if you will get clouding or not. Changing to another powdered Fe-EDTA based trace mix won't fix your problem. You need to dose one that uses Fe-HEEDTA. The main...
Hardness of water comprises of 2 parts, temporary and permanent or more commonly known to the fishkeeping world as GH and KH. The 2 tend to go hand in hand so when GH is high so is KH. When you have a KH of 15+ I can tell you that a good number of plants don't do at all well. Then again some...
I can name a couple more that I have in my tank that uses RO water. Utricularia graminifolia and rotala macrandra. In hard tap water they just die.
Without a doubt this is the case. I only have cardinals but compared to when they are in hard water their colours are much more vivid. I would also...
Yes a regulator can be damaged by a fire extinguisher for the reasons you have given. As long as the CO2 rate through the regulator is slow the CO2 has time to vapourise in the syphon tube that is inside the fire extinguisher. If however the rate is too fast then you will get liquid CO2 in the...
This calculator works out how much build ups you get when adding ferts - http://www.ukaps.org/forum/viewtopic.php?f=11&t=10937.
If you do weekly 50% water changes then it's impossible to get double your weekly dosing levels. If you carry on the maths you were doing for several weeks you'll see...
Generally speaking there is often a fair amount of potassium in your tapwater so you don't normally need to add any more to the standard EI dosing. The 30ppm level is normally the amount you want and not how much to dose each week. So adding 15ppm per week and doing 50% water changes will result...
The parts you are missing are the Nitrogen and Phosphorus which can be added in the form of potassium nitrate and potassium phophate.
For a standard dose of TPN+ of 5ml per 50 litres you add the equivalent of 5.9ppm nitrate and 0.31ppm phosphate. So if you wished to make up a separate solution...
Don't forget the apps that work with this forum. There are 2 to choose from, but they both do the same thing more or less.