red sea

I have a Red Sea 425xl for sale with a custom $800 rock wall Works perfect, no leaks or anything Asking $2,500 Comes with heater, pump and red sea reefwave 25 Local pickup only

Bought one too many of these. Never opened still sealed in shrink-wrap. $250 shipped continental US

It's never been easier to add the Random Flow Generator® to your aquarium Over the past few months we have updated and simplified our pre configured flow kit lineup. We took the guesswork out of adding an RFG Nozzle to your aquarium by pre-configuring and bundling these kits with the most...

Red Sea Reefer 525 xl cabinet for sale. The stand is in great condition. exact dimensions are 59” long, 22 3/4” wide, 35” high pick up only in Palm Beach County Florida

Red Sea Protein Skimmer 900 slightly used $315 plus shipping. Shipping is likely around $30-40 to U.S only

Included in this listing is a Red Sea desktop cube 20g AIO tank used for about 4 months. Tank is in excellent condition with no scratches. I will clean it up and take better pictures. Brand new this tank alone is 300$ Also included is a Red Sea return pump and Red Sea gravity fed ATO (These...

Great condition. Only use citrus acid to clean. Used for 1.5 years. 500 shipped to 48 states.

I have a Red Sea 659 S Max system. I recently purchased a second doser 4 that I am trying to get to connect. Has anyone successfully connected 2 doser 4's? I get a IP address, firmware update, it prompts for schedule (skip), appears to connect and grays out. Any assistance is appreciated...

It is with a heavy heart that I post my Red Sea Reefer XXL 750 for sale, this is a complete kit with pumps, skimmer, Apeks, UV, livestock, and a mixing station. I am getting married and bought a new house with my fiancée, and the new house won't work with the tank. It is a fully running reef...

Red Sea 900 Skimmer, used in great condition. Needing to downsize for my current tank Will ship at buyers expense Located in STL MO Cash PayPal or Venmo only

All Prices are Shipped Sicce 4.0 Pump - $115 - Rarely used only two or 3 times when setting up large water mix. Sicce .5 - $35 - Works excellent was on previous build no longer used. Hanna Nitrate LR - $50 - BNIB Never used SOLD Nano Flipper Float w/ extra Blades - $35 Red Sea...

purchase this with a new setup I got 2 months back did not end up using it . I’m selling it with free shipping for 380$ will include tracking number once shipped. Unopened

I have a brand new Red Sea Reefer XL 300 G2 that is driving me crazy. I have turned in a ticket to Red Sea and it they have been very slow to respond. Every excuse in the world, but no remedy. I get up in the morning to a dry return chamber. The overflow at the back of the tank is...

Hello, I've just setup my red sea desktop ATO however i dont think it's working right. I believe the water level in the return pump section of the tank (where the ATO bulb is) is too low causing the ATO to keep filling up the tank too much. The other section of the filtration chamber just fills...

6 month old Red Sea Skimmer rsk300 with extra pump. $275 shipped. $225 without extra pump.

I recently picked up an Aquaforest OceanGuard 790 from another reefer. (5’x2’x2’) As I’m planning this build, I can’t decide what protein skimmer to purchase. I had planned on buying a Reef Octopus Classic 202-S. However, the skimmer section of the AF sump is not large enough for it. I am now...

Skimmer: SOLD Lights & Arms: $400 ($225 EACH set) Doser: SOLD Used, came with a massive tank breakdown and I don’t need it. Everything was working great and has been carefully cleaned. Will meet in St. Paul weekdays or pickup a half hour east of St. Paul anytime. Will ship each item in the...

I’m on the verge on pulling the trigger on my tank upgrade and had been dead set on the Cade 1500 Peninsula. Then, I saw that Red Sea had just updated their Peninsula lineup with the G2+ designs, which is now making me wonder if the Red Sea R-700 G2+ is worth considering. A couple points I’m...

For sale is a Red Sea Reef Dose 4 unit. This unit was only ever lightly used to dose carbon source on head 1, and the other heads were never really used besides initial calibration and function test. I am willing to ship. Great little unit and I had no issues with it. Only getting rid of it...

Hello everyone, I am looking at buying an aquarium. Would like a peninsula style but open to anything. I’m looking for something in between 40-200 gallons. located in Plainfield IL but willing to travel up 4-5 hours. Preference goes to any Innovative marine SR, 70 gallon drop off, 100–200 peninsula.

I have a Red Sea Dose 2 that I won’t be using on my setup. Works great, no issues. Comes with Dose, bracket and power supply. Asking $160 plus shipping

Red Sea 725 XXL in great condition. Tank/ Stand/ and overflow are free of debris, algae, and Coraline. Tank has an upgraded Acrylic Synergy Reef CL-44 sump with matching 10 Gallon Acrylic ATO container. Stand is white with soft closing and push to open doors. Internal, plug in, disc lights...

I have a brand new RSK 600 that came with my new Red Sea system, but I decided to keep using my existing skimmer. Can ship immediately. Dustin

RedSea ReefLED50 - used for about two weeks. Upgraded. $200 shipped obro.

I recently switched from Red Sea dosing products to Seachem products. I emailed Seachem and they were nice enough to send me a calculator excel sheet on how much to mix with RO water to make a stock solution… this is where I’m struggling I am now almost double the daily dose of the Seachem...