84 Participating Brands
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RS
Red SeaFL
FluvalEH
EheimFR
FritzHK
HikariAP
APIAI
Aqua IlluminationSC
SeachemIM
Innovative MarineHY
HydorCL
CoralifeTZ
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API◆
Fluval◆
Red Sea◆
Fritz Aquatics◆
Hikari◆
Aqua Illumination◆
Seachem◆
Eheim◆
Tunze◆
Hydor◆
Innovative Marine◆
Coralife◆
Two Little Fishies◆
Brightwell◆
Kordon◆
Caribsea◆
Salifert◆
BRS◆
API◆
Fluval◆
Red Sea◆
Fritz Aquatics◆
Hikari◆
Aqua Illumination◆
Seachem◆
Eheim◆
Tunze◆
Hydor◆
Innovative Marine◆
Coralife◆
Two Little Fishies◆
Brightwell◆
Kordon◆
Caribsea◆
Salifert◆
BRS◆
Everyday Consumables
AP
API
18% off sitewide·Ends Mar 15
Combined savings on featured items
$19.70 off
1,200 hobbyists used this code
Top Discounted Products
3 items
API-SC16 · Water Treatment
API Stress Coat+ Water Conditioner 16oz
$10.49$14.99-30%
Save $4.50
API-MTK-FW · Testing
API Master Test Kit Freshwater
$28.49$39.99-29%
Save $11.50
API-SALT65 · Additives
API Aquarium Salt 65oz
$9.29$12.99-28%
Save $3.70
Top Discounted Products
3 items
FLV-307 · Filtration
Fluval 307 Performance Canister Filter
$142.99$189.99-25%
Save $47.00
FLV-BIO500 · Filter Media
Fluval BioMax Filter Media 500g
$17.49$24.99-30%
Save $7.50
FLV-M90 · Heating
Fluval M90 Aquarium Heater
$36.99$49.99-26%
Save $13.00
Mid-Range Equipment
FL
Fluval
22% off sitewide·Ends Mar 22
Combined savings on featured items
$67.50 off
2,047 hobbyists used this code
Premium Reef Supplies
RS
Red Sea
25% off sitewide·Ends Mar 8
Combined savings on featured items
$66.00 off
2,894 hobbyists used this code
Top Discounted Products
3 items
RS-CPS175 · Salt Mix
Red Sea Coral Pro Salt 175gal Mix
$62.49$84.99-26%
Save $22.50
RS-RFC3P · Dosing
Red Sea Reef Foundation A+B+C 3-Pack
$87.49$119.99-27%
Save $32.50
RS-ALK-PRO · Testing
Red Sea Alkalinity Pro Test Kit
$28.99$39.99-28%
Save $11.00
Top Discounted Products
3 items
AI-HYD32 · Lighting
AI Hydra 32 HD LED Reef Light
$309.99$449.99-31%
Save $140.00
AI-PRM16FW · Lighting
AI Prime 16 HD Freshwater LED
$116.99$169.99-31%
Save $53.00
AI-NERO5 · Circulation
AI Nero 5 Powerhead Circulation Pump
$149.99$219.99-32%
Save $70.00
High-Ticket Gear
AI
Aqua Illumination
30% off sitewide·Ends Mar 12
Combined savings on featured items
$263.00 off
3,741 hobbyists used this code
Flagship Systems
EH
Eheim
28% off sitewide·Ends Mar 19
Combined savings on featured items
$82.00 off
4,588 hobbyists used this code
Top Discounted Products
3 items
EH-2217 · Filtration
Eheim Classic 600 Canister Filter 2217
$112.99$159.99-29%
Save $47.00
EH-SUBPRO2L · Filter Media
Eheim Substrat Pro Biological Media 2L
$23.99$34.99-31%
Save $11.00
EH-SKIM350 · Skimming
Eheim Skim 350 Surface Protein Skimmer
$55.99$79.99-30%
Save $24.00
"
Verified Buyer
"I run a 450-gallon SPS dominant display tank and a propagation system. Reef's codes on Red Sea salt and AI fixtures alone covered the cost of a new calcium reactor last quarter. The alkalinity test kit deal hit at exactly the right time — I was burning through reagents twice a week."
MR
Marcus Reinholt
Reef hobbyist · Denver, CO · Member since 2021
Lifetime Savings
$0
saved across
47 orders
Avg $39.30 saved per order
Full Directory
All 37 Live Deals
Updated in real-time — last verified 2 hours ago
12,409 redemptions this month
AP
API
Water Treatment
-18%
Ends Mar 15·3,241 used
FL
Fluval
Filtration
-22%
Ends Mar 22·2,109 used
RS
Red Sea
Salt Mix & Dosing
-25%
Ends Mar 8·4,782 used
AI
Aqua Illumination
Lighting
-30%
Ends Mar 12·1,893 used
EH
Eheim
Filtration
-28%
Ends Mar 19·2,674 used
SC
Seachem
Additives
-20%
Ends Mar 25·5,102 used
HK
Hikari
Foods
-15%
Ends Mar 30·1,456 used
FR
Fritz Aquatics
Water Chemistry
-18%
Ends Mar 28·987 used
TZ
Tunze
Circulation
-24%
Ends Mar 10·1,203 used
HY
Hydor
Heating & Flow
-16%
Ends Mar 17·834 used
IM
Innovative Marine
All-in-One Systems
-22%
Ends Mar 20·1,678 used
CL
Coralife
Lighting & Skimmers
-19%
Ends Mar 14·723 used