Recent content by danielfp

You're right, the software is ambiguous in this respect, since it asks you whether something is a liquid or not, it is understandable you would assume that it does % conversions as required. In reality the percentage values are always % w/w and all other values are exactly the same for solids...

I mean when you added FloraGro to the Substance list. Minute 9:04 of your video "How To Use Hydro Buddy To Make Nutrients". You copied the exact % values on the label to the % values in HydroBuddy. This is inaccurate because you're copying a nutrient label specified as % w/v to HydroBuddy's...

I noticed an additional issue in your HydroBuddy videos. When you're adding liquid fertilizers into the HB database, you're adding them using the label compositions (which are %w/v) as if they were normal salts (which are % w/w). Although HB does have a checkbox to allow you to specify whether...

In the Oregon tests they did not make the additional effort to split nitric and ammoniacal nitrogen sources, so they only evaluated total N for the most part. About the variances in the GH tests, these are normal variations due to changes in the batch - not changes in the formulation - they are...

Exactly. This is because they will always under report, sometimes very heavily, and often very heavily on S, which contributes significantly to EC.

Pure raw fertilizers will also under report a bit - because they need to ensure all batches are above the min guaranteed analysis - but this will usually be for a significantly smaller value and will be fairly similar among all products. You can see this in the Oregon database where pure raw...

These are the average errors per element for all the GH products registered/tested from 2014 to present (25 products total). You can see that for some elements they aren't small at all. Some, like heavily under reporting P and S, are classic ways to make reverse engineering from raw salts harder.

I'm glad I could help :) The main issue is that the errors are not small at all, sometimes they can be off by a big chunk, say 30% for N, P or K, which can be the difference between plants doing amazing and just being ok (or in the worst cases dying). It is especially problematic that the...

Congrats on your videos SkyBound! I'm very happy to see you're using my software and trying to teach others how you use it. Perhaps the biggest issue with your approach is believing what the labels of these fertilizers say. If you read my latest blog post at scienceinhydroponics you'll see a...

Sorry guys, all my posts/replies from this thread were removed, although I did not link to anything but a scientific article - which was not even mine - about electrical conductivity and haven't advertised anything here at all. Since it seems 420magazine doesn't want me here I'll refrain from...