Aptus Peakboost Aptus Peakboost is a precision phosphorus flowering booster designed to maximize bloom development while avoiding nutrient antagonism. Used during weeks 2–6 of flowering, it delivers plant-available phosphorus exactly when demand is highest, supporting healthier flowers, improved nutrient balance, and optimized final harvest quality across all growing systems. Features & Benefits Product Specifications What is included? Warranty Policy Precision Phosphorus for Peak Flower Development Peakboost concentrates phosphorus into a single, controlled product, allowing growers to fine-tune bloom nutrition without the negative interactions caused by excessive potassium found in traditional bulk bloom boosters. High plant-available phosphorus for flowering Designed around Aptus mineral antagonism philosophy Avoids potassium-related nutrient lockout Maintains availability of zinc, iron, and copper Supports strong flower formation and bulking Compatible with soil, coco, and hydro systems Maximum Bloom Without Nutrient Conflict Aptus Peakboost gives growers precise control over phosphorus application during the most demanding flowering stages. By eliminating excess potassium and preserving micronutrient availability, it supports healthier plants, improved flower structure, and superior harvest outcomes. Why Aptus? Aptus is trusted by professional growers worldwide for its science-driven formulations, premium raw materials, and uncompromising quality. Each product is designed to deliver maximum efficiency with minimal input, helping growers achieve consistent, high-quality results through precision nutrition. Why Buy From Us? At GreenThumbDepot, you're not just another sale to a faceless corporation. You're partnering with a team genuinely invested in your success. Our legendary customer service, combined with a promise of unbeatable prices, sets us apart. We're here for you, always. Excellent 4.8 out of 5 based on 1,247 reviews If I could rate 6 stars I would!If I could rate 6 stars I would! My representative Edouard B. has been shockingly responsive! Like - oh my god - an actual SERVICE oriented company. He's dug into my odd connectivity issues I've been having - and following up in an AMAZINGLY timey manner. No shit. You'll be impressed! (And the price was also unbeatable, quick shipping...it's all PERFECT). Thank you Ed!! Jim D Customer service was outstanding great…Customer service was outstanding great people to deal with they understand your needs and they will do their best to fulfill them there is no way I can complain about them because they are the best help out there.Thanks green thumb depot. I'll definitely order from them again Glenn Appleton The machine is doing just what my…The machine is doing just what my salesman told it would do (I appreciate you Ed thank you) . The machine is what we need for our new business we're starting up, soon to be llc and licensed. We are getting a lot of clients wanting our services. Ed I will be needing more of your products, thank you again. Freddie Fantastic Great prices, fantastic customer service, and mind blowing shipping! Incredible. Will be using again and telling anyone in need. Kar ← → const sliderContainer = document.querySelector('.slider-container'); const prevArrow = document.querySelector('.prev-arrow'); const nextArrow = document.querySelector('.next-arrow'); let currentIndex = 0; function getCardsPerView() { if (window.innerWidth { if (currentIndex > 0) { currentIndex--; updateSlider(); } }); window.addEventListener('resize', () => { currentIndex = 0; updateSlider(); }); FAQ Section What is Aptus Peakboost used for? Peakboost is used to supply high levels of plant-available phosphorus during flowering to enhance bloom development and bulking. When should Peakboost be applied? Use Peakboost during weeks 2–6 of flowering. Do not use during weeks 7 and 8 of bloom. What is the recommended dosage? Apply at 6–16 ml per 5 gallons of water during the flowering phase. Can Peakboost be used during vegetative growth? Yes, it can be used at 1 ml per gallon during veg to help prevent purple stems if needed. Does Peakboost contain potassium? Peakboost focuses on phosphorus delivery and avoids excessive potassium to reduce nutrient antagonism. What sizes is Aptus Peakboost available in? Aptus Peakboost is available in 1L, 5L, and 20L sizes. Is Peakboost compatible with other Aptus products? Yes, Peakboost is designed to work seamlessly with the Aptus feeding program, including Finaleboost. Specifications Aptus Peakboost Product Name Aptus Peakboost SKU AP20010 Available Sizes 1L, 5L, 20L NPK Nitrogen (N) 1 NPK Phosphorus (P) 14 Application Phase Flowering Weeks 2–6, Limited Veg Use if Needed Growing Media Soil, Coco, Hydroponics Shipping Weight (1L) 3.05 lbs What is included? It includes: Aptus Peakboost (Selected Size: 1L, 5L, or 20L) Original Manufacturer-Sealed Container Usage and Application Instructions Warranty Policy Please check out the manufcaturers website for Warranty related issues.
