red sea

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...

Mount only, as pictured. $50 OBO and willing to ship

Hey all, I'm back for more punishment and maybe some enjoyment this time. I've really strived in the past with smaller tanks and I'm hoping that continues for me here. I've had 180g tanks, 20g tanks and everything in between. My last experience with winning the RS 525XL on here was not...

Looking for the Red Sea rsk 600 skimmer. I have a reefer 350 with the rsk 300 but would like the larger size to pull more air through my co2 scrubber. Would also consider similar footprint/power skimmers

Just got the RS Reef Mat and noticed the level sensors on it. When I put my tank on feed mode (using GHL) the water level in my sump rises. Should I shut off the Reef Mat as well as everything else during feed mode? Thank you all for your time and input!

Tank: Reefer 350 (V3) Current FTS (Oct 3,2023) Lighting: 2x 3x Hydra 32 with 3D reefing diffusers Filtration Equipment: Red Sea Reefmat 500 Bubble Magus Curve 7 skimmer AquaUV 15W (likely will upsize to 25W) Nyos Torq reactor with carbon and marine pure spheres (likely going back to Zeo...

When I was in kindergarten we visited family in Texas. I fell in love with my aunt's 10 gallon aquarium with Mollies and Guppies. When I got home I wanted guppies of my own. We didn't have much money and my mom worked days and nights to afford the trailer we lived in. So, like usual, I went...

Hi, I'm looking to buy a newer red sea or waterbox tank must be in good condition with no scratches, I'm located at NY NJ border Thanks

Red Sea ReefLED 90 LED Light Fixture with Mount - Lights are great condition (Looks New) - Only used for 4 months at 50% on Frag tank Asking $200 plus Shipping cost.