red sea

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...

Good Morning everyone. So I've recently picked up a Red Sea Reefer 425XL. The silicone seals all look fine, but the horror stories I've heard have made me want to bulk things up a bit. I've reinforced each corner seam, but I'm thinking of adding a brace to sit on the top of each side of the...

I’ve wanting to dose trace elements. I was wondering if anyone does it without doing icp test all the time. I was going to use bright wells trace or Red Sea. I want to use Red Sea though cuz everything I use is Red Sea (products wise). Any suggestions or opinions are great thank you.

My Red Sea 425 XL has a seal issue and I am currently speaking with them to get a replacement. So I might have to empty my tank, take it apart and rebuild a new one. 1) Any and all comments/tips/suggestions are welcomed! 2) If I am going to do this, I will also make some changes to corals and...

Has anyone had issues with their roller made wasting HUGE amounts of filter paper. 2x now in the past 2 months I’ve had my mat use randomly over 500 inches in one day! It usually should be around 40 inches. Seems to be related to the sensor getting dirty I think. I’ve been cleaning it every...

We bought this customizable net cover kit from Bulk Reef Supply, but ended up not needing it. It is still unopened in the original packaging that BRS shipped to me. $50 local pickup, or $70 for shipping and to cover Paypal fees...

Something strange is happening with my Red Sea Calcium Test kit. When I drop in the powder, some of it turns to little stones. And I’m guessing it is messing up the result since some of the powder is not dissolving. I bought the kit new less than one year ago. I follow the directions precisely...

I have two Red Sea Reefwave 45 gyres for sale. I used eight of them on my 1000G system and that was overkill (they push almost 4000gph each) so I'm downsizing to six. All come in their original boxes -- everything as if they were new. $499 for the pair. Shipping is available via UPS Ground for...