Not your average IM Nuvo 15gl build

West1

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I have a RedSea 525XL mixed reef tank with some strombus maculatus that keep having their eggs snaked on. So I decided to plumb a small tank as a nano conch safe haven.

Originally I was going to take pictures along the way and post once I’m done, then realized I should post as I go in the event another set of eyes sees something I should redo or not do.

I want to have a minimalist LR nano tank but still want the benefit of BB (beneficial bacteria) in the system if I ever need to separate the two systems. With that said, a while back I tried a diy concrete build that ended in a Biocube disaster (link to thread).

This time around, I will skip the concrete and use E-marco-400 mortar kit with crushed live rock. This should skip the long concrete PH curing process and eliminate the expansion from the concrete… at least this is the idea.

As of rn, I plan to remove the AIO of the Nuvo, drill for herbie style plumbing, remove the black tint on right pane (tank will be along a half wall), diy an overflow and permanently sculpt a thin layer of E-Marco 400 on the back pane and partial left pane to hide the black tint. If I have enough, I’ll also do the bottom, either partial or full.

Thanks for looking.
Feedback on sincere “Do Not Do’s…” are greatly appreciated!!

Materials:
IM Nuvo 15gl
.75” bulkheads (one threaded for return water)
E Marco 400 kit
Momentive RTV 100 (black silicone)
Weld-on 16 (it’s 10yrs old and still works!!)
Dry rock
Towel and Hammer to smash the rock and collect the pieces.
Razor blades
Table saw to use the plastic from the Nuvo 15 for overflow
Diamond hole saw bits

IMG_7288.jpeg IMG_7242.jpeg IMG_7243.jpeg IMG_7244.jpeg IMG_7245.jpeg
Below, I used a piece of candy to make a straight cut haha
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Below is the cutouts and the overflow held by tape prior to Weld-on 16.
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Here is the final after Wel-on. I was intensional about having the factory sides face up and having a minor relief in the corner for the factory edge, there the overflow meets it. Weld-on 16 is super strong! While trying to take a picture, literally 1-2 minutes after applying but before this picture below, I dropped the overflow as I picked it up. As it slowly fell to the ground, I watched it slowly spin mid air and as it hit the ground, I watched it bounce. I was sooo shocked that it did not blowup into 3 giant pieces OR one of the plastic panes move. When I picked it up, it was exactly how I glued it!!!!

I also knew it was a tight fit, so I stacked a few pieces of tape together and put it on the radius of the bulkhead. This way if any silicone touched the bulkhead as it cures, I won’t have an issue removing the bulkhead if I need to in the future.
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Bottom two pics are with momentive RTV 100 applied to secure the overflow box to the glass pane. I built the overflow with the majority of water pressure hitting the front overflow grill by making the overflow floor and right side behind the overflow face.
I figure the longest part of the overflow would be the weakest and giving it the support from behind would be the best approach. This is me speaking out loud in the event I did it wrong, someone can correct me before I start to put the diy glass pane-scape together. IMG_7296.jpeg IMG_7295.jpeg
 
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Dread Pirate Dave

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Looks like an interesting change. How much flow will be returning into the tank? That seems like a rather large nozzle for the size of the tank. :)
 
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West1

West1

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Looks like an interesting change. How much flow will be returning into the tank? That seems like a rather large nozzle for the size of the tank. :)
It is bigger than needed but it’s what I had laying around. I’m hoping to get 200-300ghp. Going to use a mag drive that’s 500gph and split the pump to the nuvo and a two little fishes gfo reactor.
 
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West1

West1

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Crushed one large piece of dry rock today. I seen people put it in a towel and hammer away. I swapped the towel for a pair of old Levi shorts and after crushing it, I noticed a lot of torn cloth. It was now tweezer time to get all the cloth I could see….
 

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youdunnome

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Glad to see another crazy person! I started my journey with my SR80. Originally I was going to use my corner overflow I had laying around but people talked me into an external. Plan on drilling this weekend
 
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West1

West1

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Glad to see another crazy person! I started my journey with my SR80. Originally I was going to use my corner overflow I had laying around but people talked me into an external. Plan on drilling this weekend
Personally, I felt more comfortable with the internal overflow, even tho I wanted it external for more interior space.
Good Luck! If doing multiple holes, I liked the use of tape to get my ballpark location.
 
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West1

West1

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My wife had a big surgery on Friday and we had a scare… she is home now and I just needed to check out at 11pm.

Not sure if this will hold but I do hope it does.
I used the silicone more for adhesion to the glass and the mixed Marco 400 to adhere to the silicone. Hopefully my idea works.
Once I spread the Marco mix, I pressed it into the silicone. Spread the dust, sand and tiny ruble of the smashed dry rock onto the Marco 400, followed by pressing the dry rock into the Marco 400. Let it sit for roughly 10 minutes, then set the tank right side up to get any lose ruble off.
Repeat on the 1/4 rock pane. Next will be the floor of the tank.

Once the bottom is done, I’ll blast the diy rock with a garden hose to try and test the durability of the adhesion and to remove more lose dry rock.

No going back, I hope it works exactly as it did in my brain Lol

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West1

West1

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All done for the night. Used a whole bucket of Marco 400.
I’ll let it sit over night and remove as much lose ruble as possible.
So far, my only regret is making the overflow box to shallow. I can’t remove the fittings without having to cut the 90* pvc. Hopefully I don’t have to redo the overflow box!

Overall, I’m excited about the build :)
 

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youdunnome

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Definitely going to be a unique build! I'm getting ready to start on my 15 and you have given me some inspiration for my floating shelf
 
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West1

West1

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After all this work, I realized I did not even let the tank sit for 24hrs with water to see if there are any leaks, DOH! I also wish I put the tank in its place to see the left pane would have needed to be completely covered w/dry rock ruble. You live and learn!

Here is its final resting place. Down the road, I might build a custom stand to match the redsea stand and spray it with my hvlp. For now, I’ll use my small fish cabinet that I stole from my wife :)

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West1

West1

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She’s running!
White pvc under the sump is as followed… far left is E drain. Purposely high so I can hear water hitting the sump. Gate valve is to set the drain and behind the drain (far right) has the return line (mighty jet) going to the Nuvo.

I just need to settle on a light for the frag. Either a good deal on a Reefi Uno or possibly a noopsyche v3.

It’s been running for 3-4hrs and so far everything is running smooth!
 

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West1

West1

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Woke up and ran downstairs… tank is looking good!!
I think the Marco 400 is causing my skimmer to go crazy so I’ll leave my skimmer off for a few days.

Pretty happy with how it came out!
 

HAVE YOU EVER KEPT A RARE/UNCOMMON FISH, CORAL, OR INVERT? SHOW IT OFF IN THE THREAD!

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