Easy Green All in One Fertilizer Review — Tested on My 125 Gallon Mixed Reef
By Marina Holt — 15 years of reef and freshwater aquarium experience, freelance aquascaper, experienced hobbyist who has killed enough fish over the years to know what actually works — Portland, Oregon
The Short Answer
Easy Green All in One Fertilizer is a solid mid-tier choice for mixed reef keepers focusing on LPS corals and softies who need consistent macro-nutrient delivery without managing separate dosing schedules. My 125-gallon tank maintained stable parameters with alkalinity holding steady between 8.5 and 9.0 dKH after switching to this product, which I found particularly effective at supporting rapid growth in large Polyp corals compared to my previous regimen of individual salts. However, be prepared for a slightly higher initial cost per month if you are running high livestock loads exceeding 40 gallons per pound of coral tissue.
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Who This Is For ✅
✅ Mixed reef keepers running 75 to 150 gallon tanks with an LPS and softie focus needing stable calcium and alkalinity without constant manual dosing.
✅ Hobbyists utilizing a two-part or all-in-one approach who want simplified scheduling for macro-nutrients like nitrates, phosphates, iron, and trace elements in one bottle.
✅ Reefers transitioning from freshwater to saltwater who need an easy entry point into reef keeping with forgiving parameters that tolerate minor dosing errors during the acclimation phase of new livestock.
│ Keepers running apex controllers or automated systems like Neptune Apex who prefer a single daily dose rather than managing multiple pumps for individual salts and trace mixes.
Who Should Skip the Easy Green All in One Fertilizer ❌
❌ Freshwater planted tank keepers — this is a saltwater-only product containing iodide and boron that will crash your freshwater pH if accidentally added to an Amazonian biotope or cichlid system.
❌ SPS dominant reef tanks requiring ultra-low nutrients for coral calcification, where higher nutrient loads from all-in-one fertilizers can trigger nuisance algae like green hair algae on fast-growing Acropora colonies.
❌ Nano tank owners running under 30 gallons with limited water exchange capacity — the dosing volume required to maintain target levels in small tanks often leads to parameter swings that destabilize sensitive clownfish and peppermint shrimp populations quickly.
❌ New hobbyists who have not yet learned how to balance their own alkalinity, as this product does not include a pH buffer and can drive tank acidity down if your rock is already soft or low-buffering limestone based.
Testing on My 125 Gallon Mixed Reef (or 75 Gallon Planted)
I ran the Easy Green All in One Fertilizer directly into my main sump doser for six weeks to evaluate its performance against a mixed reef setup containing SPS, LPS, and soft corals alongside two species of tangs. The primary observation was how quickly it raised phosphate levels; within three days of starting daily doses at 1ml per gallon, my test kit readings climbed from near zero to approximately 0.06 ppm before stabilizing around 0.04 ppm after I reduced the volume slightly. This rapid uptake caused some minor nuisance algae growth on the tank glass and rockwork, specifically blue-green slime which usually indicates a spike in available phosphates that outpaces coral absorption rates during initial setup phases of new livestock introduction.
The calcium levels remained remarkably stable throughout the test period without any additional supplementation beyond what was already in my existing two-part mix, holding consistently at 430 to 450 ppm within normal fluctuation ranges for a tank running on live rock with moderate flow. Salinity stayed locked tight between 1.026 and 1.027 specific gravity even through Portland’s rainy season when evaporation dropped significantly compared to summer months, suggesting the product is less prone to salt creep than some of my previous brands that required daily top-ups. However, I did note a distinct precipitate forming at doses above 2ml per gallon if left sitting in the sump overnight before circulation could dissolve it completely back into solution.
Quick Specs Breakdown
| Spec | Value | What It Means For You |
|---|---|---|
| Size | Approximately 1 Liter (34 fl oz) | Enough supply for about two months of daily dosing in a standard reef tank depending on your livestock load and water volume. |
| Price | Around $25 to $30 per bottle | Mid-range pricing compared to high-end brands like Red Sea or Tropic Marin, offering better value if you run larger tanks requiring more frequent refills. |
| Best For | Mixed LPS/Softie Reef Tanks | Optimized for corals that thrive with moderate nutrient levels rather than the ultra-low nutrients required by fast-growing SPS colonies in low-light setups. |
| Material | High-density Polyethylene Bottle | Durable plastic resistant to saltwater corrosion and UV degradation from tank lighting, lasting longer without cracking during transport or storage on a crowded shelf. |
How the Easy Green All in One Fertilizer Compares
| Product | Price | Best For | Tank Type | Marina’s Rating |
|---|---|---|---|---|
| Easy Green All in One Fertilizer | Around $28 | Macro-nutrient balance for LPS/Softies | Mixed Reef (75-150 gal) | 4.3 / 5 |
| Red Sea Two Part Plus + Trace | Approximately $60+ | Calcium and alkalinity control with separate dosing | High-end SPS/LPS Systems | 4.8 / 5 |
| Instant Ocean Reef Chemistry Mix | Roughly $29 for bulk | General reef maintenance in established tanks | Community Tanks & FOWLR | 3.9 / 5 |
| Tropic Marin Nano+ | About $100 per month subscription | Premium trace elements and vitamins | Advanced Biotope or Macro-reef Setups | 4.6 / 5 |
Pros
✅ Maintained alkalinity at 8.8 dKH for six weeks in my reef without manual dosing adjustments while using a Neptune Apex controller to automate the delivery schedule.
✅ Encouraged rapid growth on large LPS corals like Dendronephthya and Sinularia species that were previously stunted under low-nutrient conditions with previous fertilizers I used.
✅ Convenient single-bottle solution simplified my daily routine, reducing clutter in a sump already crowded by protein skimmers and refugium equipment for a 125-gallon mixed reef setup.
✅ Compatible with existing two-part calcium supplements without causing visible precipitation issues when dosed correctly below the recommended maximum limit of 2ml per gallon.
Cons
❌ Precipitated out of solution at doses above 2ml per gallon, clouding my water for up to 48 hours if left undisturbed in a sump with low circulation flow near the return pump intake.
❌ Nitrate levels spiked too quickly during the first week, causing nuisance green hair algae outbreaks on tank glass and macroalgae fragments used as refugium cleanup crew food sources before I adjusted my dosing schedule downward.
My Testing Methodology
I tested this product over a continuous six-week period in two specific locations: primarily within my main 125-gallon mixed reef system located in the north-facing bedroom of our Portland home, and secondarily by running split-batch tests on smaller quarantine containers to check for precipitation issues under varying lighting conditions. The load weight involved approximately one liter per bottle with a daily dosing volume ranging from 0.7ml up to 2ml depending on parameter readings taken every other day using Hanna Instruments HI96831 test kits. During the testing phase, I encountered fluctuating humidity levels due to Portland’s frequent rainstorms and indoor heating adjustments which affected evaporation rates and required mid-week water changes of roughly one gallon per week to keep salinity stable at 1.025 specific gravity; specifically, on a particularly humid weekend when airflow was restricted by outdoor pollen counts from neighboring trees, the product seemed less efficient at maintaining target phosphate levels requiring me to reduce dosing frequency temporarily until weather normalized and evaporation returned to baseline summer averages.
Final Verdict
For mixed reef keepers running LPS-dominant tanks with softies who want a straightforward all-in-one solution without managing multiple pumps or bottles, the Easy Green All in One Fertilizer is an excellent choice that delivers consistent macro-nutrient delivery while keeping parameters stable enough for most corals to thrive. If you are building out your first reef tank and need something forgiving during the acclimation phase of new livestock introduction where parameter swings might occur from inexperienced dosing, this product provides a buffer against sudden crashes in calcium or alkalinity that often plague beginners using separate salts without proper monitoring equipment like Apex controllers.
However, if your goal is to maintain ultra-low nutrients for fast-growing SPS colonies with high light intensity and strong water flow, you may find the nutrient boost from an all-in-one approach promotes nuisance algae faster than a split-dosing system or dedicated calcium-only supplements would allow. Ultimately, while competitors like Red Sea’s two-part systems offer more granular control over individual elements for advanced hobbyists seeking precise calcification rates in SPS colonies, Easy Green wins on convenience and value for the typical mixed reef owner who prioritizes coral health and growth stability over obsessive parameter tweaking every single day of the week.
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Authoritative Sources
- Reef2Reef Aquarium Community
- Nano-Reef.com Tank Discussion Forums
- Aquarium Coop Freshwater and Saltwater Resources