
Macro Elements
G2920
Essential nutrients for lush, vibrant plant growth. Waterbox Macro Elements delivers the core nutrients that power fast, strong development of stems, leaves, and roots. By supporting photosynthesis and metabolic function,...
Or build it into a bundle — save up to 6% ↓What it is, and who it is for.

Essential nutrients for lush, vibrant plant growth.
Waterbox Macro Elements delivers the core nutrients that power fast, strong development of stems, leaves, and roots. By supporting photosynthesis and metabolic function, it accelerates growth and enhances natural coloration, helping plants reach their full potential in both high-tech and low-tech freshwater setups.
Formulated for consistent results, Macro Elements provides the foundational nutrition that aquatic plants rely on to maintain balance, resilience, and visual appeal. Safe for all fish and invertebrates, it is an essential component of a complete plant care routine and works best when paired with Waterbox Micro Elements and Carbon+.
Key Benefits:
• Fuels rapid growth of stems, leaves, and roots
• Enhances rich, natural coloration and plant vitality
• Supports photosynthesis and nutrient absorption
• Safe for all fish and invertebrates
• Ideal for high-tech and low-tech planted aquariums
Directions for Use:
Use 5 ml per 100 L (25 gal) of aquarium water twice per week.
For best results, use alongside Waterbox Micro Elements and Carbon+ as part of your regular dosing schedule.
Build around the Macro Elements.
It's already in your system below. Add the flow, filtration and dosing around it and the discount starts working — tiers climb as the build grows, and the reef meter fills with it.
Pick the right one, not the biggest one
The honest line-up from supplements. Most buyers reading this page should buy the middle column.
Asked before checkout
The questions our support inbox actually gets.
Does it ship quickly?+
Orders placed before 2 PM ET on a business day leave the same day. Tracking is emailed the moment the label prints.
What if it's the wrong fit for my tank?+
Return it. 30 days, no restocking fee, refund to the original payment method. Better: tell us your tank first and we'll spec the system for free — half of all returns are sizing problems.
Who handles the warranty?+
We do. Everything carries the manufacturer's warranty and we run the claim for you — one email to us instead of a ticket queue.
How does the bundle discount work?+
Add items in the bundle builder: 2+ items saves 5%, 3+ saves 8%, 4+ saves 12%, and 5+ saves 15% off the whole system, applied at checkout.

Micro Elements
Macro Elements
Carbon+