Recent content by simpsonian

ok - thanks for clarifying and I will make sure to use ppm by weight.

great - thanks! the PPM question was more of a theoretical one to make sure I understand how it works. I'll have to make sure I understand whether the concentration is based on mass or volume or just use the on-line calculators. i believe most mixtures are based on % mass which is why some of...

I understand what you are saying but my 10% iron solution is not measured in mg - it is a liquid of 10% concentrate. If it is 10% by volume (not weight), can't I use 1mL/1000L for PPM? 1mL of a chemical in 1000 L of water must be literally 1 part per million... 1 mL / 1,000,000 mL = 1 PPM, right?

yes - i am concerned about that as well. I think I will add one more strip to max out the lights. the LED's are just so cool and quiet, not to mention their low profile and nice blue night light! Some reviews on Amazon have said they work well for med/low light plants but time will tell. I...

I've done some research and just recently started a 55-gallon planted aquarium with an assortment of plants and some shrimp and snails to help with any algae outbreaks. I'm starting to evaluate my ferts and dosing and want to make sure I have the fundamentals right. Firstly, I have well water...