• Thank you for visiting the R2R Marketplace! Please consider becoming a Supporting Member today! In addition to all the perks of becoming a supporting member, this notice will also be automatically removed! Click here for more details and Happy Reefing!

Neptune Systems A3 Apex Pro Aquarium Controller System

Jump to Last
Item Price
700
Selling Terms Of Service
  1. YES I have read the terms and agree to them
Buyer Protection
  1. YES I agree and I understand that as a seller I may not ask for payment through platforms that do not offer buyer’s protection.
Thread Prefix?
  1. YES I have added pre-fixes to my thread title.
Shipping
YES shipping is available
gdubs

gdubs

Community Member
View Badges
Joined
Oct 11, 2019
Messages
73
Reaction score
53
What state or country do you live in
North Carolina
Rating - 0%
0   0   0
Neptune Systems A3 Apex Pro Aquarium Controller System
Purchased in 2023. Works perfectly. Includes:
A3 Apex Pro Base Unit
Energy Bar 832
Liquid Level Sensor (LLS)
LD-3 Optical Multi-Surface Leak Sensor
Temperature, pH, and ORP Probes



2026-08-09 13.03.39.jpg

2026-08-09 13.03.32.jpg

2026-08-09 13.03.28.jpg

2026-08-09 13.03.24.jpg

2026-08-09 13.03.19.jpg

2026-08-09 13.03.10.jpg
 
Saltwater Aquarium
Sold
 
View ReefStash's latest YouTube video!

Similar threads

A
Unanswered Wisconsin Aquarium Controller Dry Goods CLOSED *sold* Neptune A3 Apex Pro
  • Price: $725 Shipping Included
  • Shipping Available
Replies
0
Views
81
AAdkins5944
A
E
Dry Goods Apex A3 Pro with Salinity Probe
  • Price: 570
  • Shipping Available
Replies
3
Views
112
elmsreef
E
jgarza
Texas Aquarium Controller Dry Goods Neptune Apex A3 Pro w/ FMM, MXM, & Controller Board
  • Price: $800
  • Shipping Available
Replies
2
Views
114
jgarza
jgarza
nuvocube
Florida Dry Goods SOLD Apex A3 System
  • Price: 450
  • Shipping Available
Replies
3
Views
126
Skippy The Meh
Skippy The Meh
nuvocube
Florida Aquarium Controller Dry Goods Apex A2 system with tons of extras
  • Price: 600
  • Shipping Available
Replies
6
Views
305
nuvocube
nuvocube

TOP 10 Trending Threads

Redbird5
LFS had stratosphere zoas for $20 a head
2
Replies
20
Views
228
tbrown
tbrown
A
    • Like
Oceamo Icp VS Triton
2
Replies
23
Views
351
BryanM
BryanM
BubbleBuddy
    • Mind-blown
    • Wow
    • Like
Nightmare Fuel…..Bristleworm Eating Silicone
2
Replies
25
Views
719
Rocks reef
Rocks reef
M
    • Like
Reef tanks using TBS sand
2
Replies
28
Views
391
kevgib67
kevgib67
richiero
I decided to go with brs and tropic Marin trace elements.
2
Replies
23
Views
271
Randy Holmes-Farley
Randy Holmes-Farley
C
EMERGENCY Green Spotted Puffer on sandbed and lethargic
2
Replies
21
Views
198
Jay Hemdal
Jay Hemdal
1112-425XL
    • Sad
    • Like
    • Mind-blown
RED SEA G1 Owners BEWARE!!
2 3 4
Replies
74
Views
1,585
Psherman42
Psherman42
X
Dual Return Pumps
2
Replies
34
Views
478
mcarroll
mcarroll
T
Reddish color appeared on Yellow Tang body
2
Replies
21
Views
358
TangGangz
T
exnisstech
    • Like
Smart plug adjustable by the second?
2
Replies
21
Views
346
Seregus
Seregus

WHICH TYPE OF MISTAKE TAUGHT YOU YOUR MOST EXPENSIVE REEFKEEPING LESSON?

  • Moving too quickly or adding too much at once

    Votes: 12 31.6%

  • Skipping—or shortening—quarantine or dipping

    Votes: 5 13.2%

  • Buying the wrong equipment the first time

    Votes: 7 18.4%

  • Ignoring maintenance, warning signs, or redundancy

    Votes: 12 31.6%

  • Chasing numbers or making too many changes

    Votes: 3 7.9%

  • Choosing incompatible fish, corals, or invertebrates

    Votes: 5 13.2%

  • Poor aquascaping or tank-design decisions

    Votes: 4 10.5%

  • Failing to research an animal’s needs

    Votes: 1 2.6%

  • Trusting bad advice

    Votes: 4 10.5%

  • Doing something on the tank when you should've gone to bed

    Votes: 5 13.2%

  • Something else—tell us below

    Votes: 4 10.5%

  • I’m still waiting for my first expensive lesson!

    Votes: 4 10.5%
See comments…

New Posts

Nutramar Foods
SaltwaterAquarium.com
World Wide Corals
TSA
TCK Corals
Dinkins Aquatic Gardens
Tidal Gardens
New Posts
Back
Top
Home
Forums
Post thread…
Market
What's new