Lotus Pro Series Cal/Mag is a premium source of the two most readily absorbed secondary nutrients, integral for balanced and healthy growth, essential for coco based grows.
Ideal ratio of calcium to magnesium (4:1) developed to treat calcium and magnesium deficiencies.(1%)
Perfect product to be used in coco coir to prevent calcium/magnesium lock out.
Can be used to pre-treat coco coir prior to planting, to flush out excess sodium and chloride from the medium.
- Makes for a great foliar spray or a root zone application.
Please note: You may notice that the consistency of our nutrients is close to that of “kinetic sand” and maybe appear moist on first glance. Please be assured that this is completely normal, and will not affect the solubility, nor performance of your product. This consistency is due to the sheer complexity of our nutrient blends, which is 100% geared toward growing the strongest and most quality harvest possible.
FREE Shipping over $49
We ship from our Buffalo, NY warehouse
Free to lower 48 states
Affordable rates to HI/AK/Canada
We ship UPS Ground and offer expedited services
Fast, Discreet Shipping
We run a tight warehouse to steer clear of
mistakes and delays, and we use
so your purchase remains a private matter.
A Better Shopping Experience
What is the status of my order?
To check the status of your order visit the order confirmation page that was sent to your email or phone number after checkout. If you have ShopApp you can track your order status there too.
How long does it take to get my order?
Most orders are received in 3-5 business days. See the UPS shipping map above for more specific shipping times.
Do I need to be there to sign for it?
Signature is required for orders over $5,000. For security/privacy concerns, we're happy to ship directly to a local UPS store near you!
Who will be delivering my order?
We ship orders from our warehouse using UPS Ground, unless expedited shipping options are purchased. If an item is coming Factory Direct, we have little control over which carrier they choose to use but will request they ship discreetly!
Do you ship to P.O. boxes, APO/FPO addresses, or international addresses?
At this time, we do not ship to post office boxes or APO/FPO addresses. We only ship international orders to Canada.
Who is responsible for duty/taxes on international shipments?
The customer is responsible for paying duty and taxes. You can complete these payments using your tracking number at UPS.com.
What happens if my package gets lost?
All items purchased from Happy Hydro are made under a shipment contract, meaning the risk of loss and title for such items passes to you upon our delivery to the carrier. With that said, we're in the business of making happy customers, and we will work overtime to resolve issues with carriers.
What are the shipping conditions that apply to Factory Direct Items?
- Processing times may vary depending on the supplier.
- These items are subject to a 15% restocking fee.
- They'll choose which parcel carrier to use, shipping map may not be accurate.
- We will request they use plain box shipping.
- Please reach out if any expectations are unclear or if you have any questions!
How can I pay?
You can pay at checkout with your credit card, debit card, PayPal, Coinbase, or Happy Hydro gift card.
When will I be charged?
Your payment method is charged immediately upon checkout.
Why is my payment method not working?
Double-check to make sure you've entered the billing address and card number correctly. Some credit and debit cards have daily spending limits. If you're making a large purchase, be sure to call your bank to let them know ahead of time.
What information do I need at checkout?
Our checkout is easy, fast, and secure. Enter your shipping address and payment method to place your order!
I’ve received a promo code. How do I apply it?
At checkout, simply type the code into the box that says “Promo code” and click “Apply.” Promo codes can only be used once.
How can I get in on a promotional offer?
If you’d like to receive additional discounts on your Happy Hydro purchases, subscribe to our mailing list.
Can I use multiple promo codes?
Promo codes can only be used once. However, a gift card and a promo code can be used together.
How do I request a return or replacement?
Our return policy is simple and worry-free. If you’re not satisfied with your gardening supplies for any reason, you can return them within 30 days for free and we will refund you or replace them. Send an email to email@example.com to begin the return process.
Returns must be in original packaging with all parts and in new resalable condition.
Happy Hydro does not take title to returned items until they are received back at our warehouse, at that time we will issue a refund.
Factory Direct items are subject to a 15% restocking fee. Please reach out to our customer service team to begin the return process.
Multi-light orders are subject to return shipping charges.
Buyers from AK, HI, or outside of the USA are responsible for return shipping fees and shipping fees for warranty replacements.
What is the status of my refund?
Our payment processor, Shopify, processes refunds within 10 days. Most customers receive their refunds within five days.
How do I cancel or change my order?
To cancel or change your order, reply to the order confirmation email you received or email firstname.lastname@example.org.
Is there a restocking fee or return shipping charge?
No, there are no restocking fees or return shipping charges with a couple of exceptions. Orders that are tagged "Factory Direct" will have a restocking fee of 15%. Returns on multi-packs of lights will be subject to return shipping charges.
How do I contact customer service?
You can reach one of our devoted gardening professionals 8a-5p EST M-F or email email@example.com 24/7.
Do you charge sales tax?
We only charge sales tax on orders placed in New York.
Our bottom-line commitment is to have happy customers. Rather than focusing on raising margins and obsessing over profits, we've achieved an extraordinary customer retention rate by offering competitive prices, superior products, and – perhaps most importantly – world-class customer service.
What you can expect from Happy Hydro:
100% Secure Shopping- Know that every transaction that takes place on our website is encrypted and 100% SSL secure so your information is safe. We don't save payment information and will never sell your data.
Price Matching - Most products on our site are priced as low as we are allowed by manufacturers. But, if you find a better deal we will always match it and you can always call us for exclusive pricing.
Free 30 Day Returns - Let's be serious, it's tough making a commitment to a product without seeing it first. That's why we're offering 30 day free returns. All we ask is you send it back in new condition and don't destroy the box!
East & West Coast Shipping - We don't cut corners by drop-shipping. We have our own warehouses on the East and West coast to deliver most shipments between 3-4 days. Large commercial items may ship factory direct.
Discreet Shipments - We do our best to ship discreet. If we can cover up a label on the outside of a box, we do it. If you have special requests put them in the order notes when you checkout, we read them!
Fully Insured Shipments - Every shipment that leaves our warehouses is fully covered in case of a lost or damaged item. We also request signature's on orders over $5000 for further protection.
Superior Gardening Products - All the manufacturers on this site are hand-picked by our founders to ensure you receive a quality product. All items are inspected (twice) before leaving our warehouses so we know that you'll be happy with the product that arrives at your door.
World-Class Customer Service - Our bottom-line commitment is to have happy customers. Rather than focusing on raising margins and obsessing over profits, we've achieved an extraordinary customer retention rate by treating our customers the way they deserve to be treated.
Authorized Dealers - Happy Hydro is an authorized dealer for every brand that we carry. You can rest easy knowing you will receive the full manufacturer's warranty with every purchase.
Volume Discounts - Are you a commercial grower or do you plan on making a large order? Send an email to firstname.lastname@example.org or call (716) 217-0353 for discounts too good to post online.
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.