Humboldts Secret Base A & B Liquid Hydroponic Fertilizer | Complete Hydroponic Nutrients for Indoor and Outdoor Plants | Supports Healthy Vegetative Growth and Flowering Stage | 2.5 Gallon

3 weeks old Sunday and almost 1ft tall and wide. Need 3rd tent now. Have huge stalks already and exploding with growth. Better than last nutes I used on 1st 2 grow seasons. Love it.

Works well only problem being out of stock often

It is a great grow and bloom fertilizer. I'm using all of their products for an inside grow.

This stuff seems to work, but the wording on the back is hilariously ambiguous, and I'm sure I'm adding the wrong amounts. It says "5-9ml/GAL A + B". First up, mixing metric and imperial measurements like that is confusing - it's a bit like saying "5-9 inches per kilometer". Beyond that, this wording could mean: 1) "5-9ml of A + B combined per gallon of water you are adding" 2) "5-9ml of A and 5-9ml of B per gallon of water you are adding" 3) "5-9ml of A + B combined per gallon of water in your tank" 4) "5-9ml of A and 5-9ml of B per gallon of water in your tank" I think it's option 2, but as a hydroponics noob I could see it being 3 or 4 too (maybe the plants pull all the nutrients out of the tank water so you need to replenish - dunno). Here are a few formulations of what I think they mean, using a consistent measuring system: * mix 1-2ml of each of A and B per liter of water you add * mix 1-2 parts of each of A and B with 1000 parts water, then add to your tank * mix 0.2-0.3 fl oz of each of A and B per gallon of water you add You probably boost your chances by sticking to metric here as they're calling for a dilution of roughly a thousand to one, and that's hard to do with imperial. Also, invest in a pipette because eyeballing 9ml is a challenge for the best of us.

I’m new to hydroponics, but this is really simple to use. Adjustments to EC are easy to make and you can literally see the results of your changes overnight in your plants. Highly recommended.

I use the whole Humboldt's Secret nutrient line on plants grown indoors in tents with automated lighting, circulation and exhaust fans and manual feeding, watering, temperature and humidity controls. My flowers are cup quality, every time. Top quality nutrients, broad spectrum, easy schedule and dosing and super reasonable compared to other brands with comparable offerings. On average, I'd say my return on investment in yield:nutrient is about 50:1. Hard to argue that. I'm a believer.

This stuff probably works great. Nothing noticeable after only a week. I have high hopes. I won't be buying anything more from this company because they suggest buying an additional product for it to work well. This was never mentioned in the information on the product description. I feel a little scammed, I would have bought it if it would have been mentioned. I bought this just for my regular garden veggies, I will write a glowing review if my garden does better than normal. A couple of months later and my garden has done the best it ever has, still won't buy it again because of the shady sales tactics.

I love this so much that this is a re-order! This product is fantastic for hydroponic systems or traditional planting. I found it worked even better than the supplied food for Aerogarden. I use 9 ml of A + 9 ml of B in a gallon of water. It’s great for houseplants at that ratio too. So happy someone recommended it to me!