Eshopps Mariner M40 Build

whalewhalewhale

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I didn't see too many posts about the Eshopps Mariner M40, so I decided to share my build and hopefully answer some questions for anyone else interested in this tank!

Mariner M40.JPG


I am coming from a previous well established 5+ year old slightly smaller system, and I wanted to minimize any "cycling" and get the tank up and running as fast as possible. To do this, I transferred all my previous rock and added cured Aussie Live rock sourced from Unique Corals in Van Nuys and Eric over at TankStop (I handpicked the rocks myself at LAX Aquarium where he keeps them). I used 20lbs of brand new CaribSea Special Grade that I rinsed in RO/DI before adding. I didn't really need the bacteria that comes with it nor did I want the cloudy mess that comes with using it straight out of the bag. Perhaps I wasted my money buying the "live sand" version, but it's what my LFS had in stock.

The tank and stand arrived in a single ~200lb crate approximately 4'x3'x3' in size and took about 1.5-2 weeks for Eshopps to ship after ordering it online. Labels say made in Vietnam. The crate's internals were well padded and was arranged so that all furniture was in a cardboard box, and the tank, sump, plumbing, and documentation were shrinkwrapped together. Pulling out the contents required disassembling the crate with a power drill.

Assembling the stand was IKEA level difficulty and all the tools are included inside except for screwdriver. There was a light primer/paint smell I noticed when I first opened the box for the stand and some dry paint residue did rub off on my hands and clothes. The stand is supported by 8 small adjustable feet (2 on each corner). The feet each have two nuts that you use the included wrench to adjust the height and to "lock" the height to prevent it from creeping. You should be patient with this step and absolutely don't ignore it as the stand does NOT come leveled out of the box.

Both the stand and tank required two people to move as they are both around 80-90lbs each and a little too lengthy for the average person to try to carry on their own. All the plumbing was included and instructions for assembly were pretty straightforward. It was a bit challenging for me to hold the overflow and return pipes inside the narrow overflow box while also screwing in the other half from below the tank. I think this may also be a two person task.

Overall, it's a beautiful and quality tank that the folks at Eshopps definitely put a lot of thought into. The "peace of mind" is by no means an exaggeration as I measured all 4 sides of glass to be 10mm ± 0.1mm of thickness which I confirmed with digital calipers. For those of you who are new to this hobby, 10mm glass is generally found on aquariums 2-3x the size of this tank. Paired with the Wacker silicone cured for 15-30 days and the marine grade wood stand, it is without a doubt an "overbuilt" aquarium you can trust.

My goal is to build a mostly SPS dominant system. The previous system was a mixed reef, and I got a lot of enjoyment out of growing and fragging SPS which is why this is where my focus will be this time.

Equipment List:
  • Lighting: Kessil AP9X
  • Flow: 2x Ecotech Vortech MP10
  • Return Pump: AI Axis 40
  • Protein Skimmer: Simplicity 120DC
  • Fleece Roller: Nature Dimensions N-Clear M (with adapter plate for the 4x7 rectangular filter sock slot)
  • ATO: BRS Top Off Doser + Avast Top Off Sensor/Outlet
  • Dosing: Ecotech Versa
  • Heating/Cooling: Inkbird + BRS 100W Titanium Heater + Custom fans
  • Refugium: no name LED grow light from Amazon
  • Salt: Tropic Marin Pro Reef

Livestock:
  • 2x Ocellaris Clownfish
  • Striped Fang Blenny
  • Yellow Watchman Goby + Candy Cane Pistol Shrimp
  • Six Line Wrasse (newly added 2 weeks later)
  • Biota Mandarin Dragonet
  • Banggai Cardinal (new added 1 week later)
  • 2x Tuxedo Urchins
  • Unknown number of Hermit Crabs and snails
  • Random mushrooms, LPS, and soft corals that hitchhiked on the rocks

Please feel free to drop any questions about the tank or my setup. I will also try to update this thread with the tank's progress over time!
 
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Following along!
 
I just bought one of these as my first tank! Would love to see a few pics of the sump setup if you’re willing to share.
IMG_9080.jpeg

I haven’t installed the filter roller yet as I’m waiting to get an extension cord for it. The included filter sock is there temporarily.
 
Thank you very much! How're you liking the DC120? I'm planning on running one as well.
It’s fantastic. It was a little noisy during break in but it’s dead silent now. Mostly light gurgling from the bubbles. I also didn’t have to do much in terms of water level as it was perfect when I dropped it in.
 
I designed this 4" sock holder plate for the Eshopps sump. It fits directly into the cutout in the overflow chamber. Free to download from printables.

filter sock plate.jpg


Warning: it wasn't tested against an actual 4" sock. I mainly designed this to hold the fleece roller that required a circular 4" sock hole. Consider it a bootleg version of the adapter plate sold by nature dimensions.
 
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IMG_9104.jpeg
fleece roller is in! Coming from filter socks and filter floss, this is pretty cool. It moves roughly an inch every 2-3 hours. That means a single $9 roll should last me about 2 months or so. Beats having to wash socks and toss out rotting filter floss every other day.
 
I just assembled my M40 and noticed when I went to install my return pump (Simplicity 1000 DC) that the return hose is too short. Did you have to modify yours at all for your pump or was it fine right out of the box?
 
I just assembled my M40 and noticed when I went to install my return pump (Simplicity 1000 DC) that the return hose is too short. Did you have to modify yours at all for your pump or was it fine right out of the box?
Mine is suspended in the water, which is what I wanted. But yeah if u want it to sit on the floor, it is too short and you’ll need to get an extension or a different hose. The Sicce Syncra I had before the AI Axis was also suspended in the water.
 
Mine is suspended in the water, which is what I wanted. But yeah if u want it to sit on the floor, it is too short and you’ll need to get an extension or a different hose. The Sicce Syncra I had before the AI Axis was also suspended in the water.
Thanks for the response! Guess I'll give it a try with it being suspended. Is there a specific reason you wanted yours to be suspended in the water?
 
Great looking tank! Is there a cutout for the light on the overflow cover? I saw it at RAP Orlando and I can’t remember.

I am debating on getting one and the sale going on right now is making it very tempting.
 
Great looking tank! Is there a cutout for the light on the overflow cover? I saw it at RAP Orlando and I can’t remember.

I am debating on getting one and the sale going on right now is making it very tempting.
unfortunately no. The overflow cover is 10mm glass plate, and I think the intent was that there would be two lights mounted on left and right. I did see a photo of someone who mounted their light on the wall behind it so they were able to use the overflow cover.

I just have mine open but it will be covered once I get a custom lid from Kraken. I wanted to go lidless but my wrasse decided to go carpet surfing lol. I managed to save it since I was in the room when it jumped.
 
Great looking tank! Is there a cutout for the light on the overflow cover? I saw it at RAP Orlando and I can’t remember.

I am debating on getting one and the sale going on right now is making it very tempting.
unfortunately no. The overflow cover is 10mm glass plate, and I think the intent was that there would be two lights mounted on left and right. I did see a photo of someone who mounted their light on the wall behind it so they were able to use the overflow cover.

I just have mine open but it will be covered once I get a custom lid from Kraken. I wanted to go lidless but my wrasse decided to go carpet surfing lol. I managed to save it since I was in the room when it jumped.
Well I’m glad you were able to save it 🤣

I might be crazy because I just set up my M180 and I’m looking at the M40 thinking that it would look really good in my living room. I already have everything needed to get it going too, it’s just do I really need two brand new tanks going at the same time lol
 
Thanks for sharing your build! Your setup looks great, and now I’ve got an m40 on order from the recent sale and can’t wait to get it up and running. Seeing what you did was really helpful in deciding what I wanted to do for my build!

I’m curious to know how much live rock you put in yours? I’m also looking at the Aussie live rock, but from Barrier Reef in my case since they’re an lfs. I wish they had it in stock so I could hand pick but I’ll have to roll the dice. I’ve heard the Aussie rock is pretty light, so trying to estimate how many pounds I’d need to build a large rockscape.
 
Thanks for sharing your build! Your setup looks great, and now I’ve got an m40 on order from the recent sale and can’t wait to get it up and running. Seeing what you did was really helpful in deciding what I wanted to do for my build!

I’m curious to know how much live rock you put in yours? I’m also looking at the Aussie live rock, but from Barrier Reef in my case since they’re an lfs. I wish they had it in stock so I could hand pick but I’ll have to roll the dice. I’ve heard the Aussie rock is pretty light, so trying to estimate how many pounds I’d need to build a large rockscape.
Aussie rock generally comes as two types from my experience.

1. “Branch rock”: example typically ancient staghorn acropora skeletons. You can tell they’re really old as almost all of the corallites have been worn away and filled with various minerals. This rock was probably found deeper in the pile as it generally only has some coraline and small sponges growing. Least amount of hitchhikers if any. This rock is quite dense and heavy. I’d put it almost on par with the weight of marco rock. A lot of people like this rock because it’s easier to make taller aquascapes with enough hiding spaces for larger fish. Golden State Corals exclusively used this rock for their main display.

2. “Decorative rock”: example much younger tabling acropora skeletons. Coralites are very much visible, and overall structure makes it obvious that this is a colony that died within the last 50 years or so. This also likely means this rock was found at the top of the pile and comes with the most amount of biodiversity. Mine came with some various crabs, clams, copepods, worms, anemones, macroalgae, sponges, 5 different shades of coraline, and other oddities. This type is very very voluminous relative to weight. I filled a whole 5 gallon bucket with this rock and it came out to around 7-8lbs total. I only needed that much because I was bringing over marco rock from my previous tank. I think If I only went with this rock, around 10-12lbs would’ve been sufficient for the display. 15lbs would leave you with some extras to throw in the refugium.
 
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