Planet 400G Overhang Reef

[skyrne_isk]

Still waiting on VHO bulbs to show up to mount those endcaps and wire everything up. I did get a new wiring harness for the VHOs, the wire casings were a little crispy on the harness that came with the 660. Amazingly Coralvue still had some for sale.

Had to do some digging to find the wiring diagram on a 2 bulb configuration (this post is from 2016 lol).

I did order these cable hanging systems for the canopy rated at 25kg each.

Not sure I trust toggle bolts to handle 50lbs, so have something in the works to bolt to the studs.

I did get some work done on the canopy earlier today. Am going to use a TV mount on the wall side of the tank. So I got some insert nuts / threaded countersink bushings into the canopy that line up with some holes I drilled into the frame of the TV mount.




Drilling the holes for the bushings was a bit tedious, the first bit I tried was a little small and I couldn’t get it to sit flush. But it will be hidden under the mount and the rest went in fine. Here’s the trick I used to get the holes drilled to depth. Fancy.

It’s sorta at the phase in the project where I am getting nickeled and dimes to death on incidentals. But that’s how it goes.

 

[Delly]

It will become apparent later, but this piece of wood was the start of my primary reef structure - the unsupported overhang. During the build, it was screwed down flush to the plywood deck I used to build the rock structures on top of.




The first couple rocks looked like this - built around the piece of wood

This was continued progression upward of the overhang and getting a sense check of proportions.

I briefly toyed with flipping the order of the structures.

But decided against it and kept building the overhang.

Here felt like the angle was a bit severe so adjusted (coke can for scale)

Top down view at this stage.

Other side, some odd protrusions didn’t quite look right.

Final product:

I wanted the overhang structure to be the dominant feature but initially it was about the same height of the arch. So you might notice the wood platform now under the base of the bigger structure to lift it up a bit. Turns out that greatly complicated the engineering of the anchor of the structure, but give me a little more height without having to build the structure ever longer. So if this build succeeds or fails, it will be on what comes next!

wow Love the detail you are providing for the form. I have never seen a hanging reef before, well done in a tank. This is super cool.

After everything drys are you going to be able to move the wooden blocks?

 

[skyrne_isk]

wow Love the detail you are providing for the form. I have never seen a hanging reef before, well done in a tank. This is super cool.

After everything drys are you going to be able to move the wooden blocks?

Thank you! And yes the wooden block was only a template / stand in piece for the PVC that will be part of the permanent structure. Basically I used wood so I could drill and do whatever I needed to do to work out the cantilevering and building the overhang - it was always temporary. Then I transferred the holes in the wood block of the final fiberglass rod positions to the PVC block.

We will see if I am successful - there is a much less good plan B if it fails spectacularly

 

[skyrne_isk]

I worked entirely too long on Memorial day on the wiring up of the canopy. But the good news is it’s 90% done. All that’s missing is to drill the holes for the VHOs and to screw in the standoffs - I went ahead and ran the wires to be close enough for final positioning. And I need the VHOs to get here before mounting the endcaps - I don't trust stated measurements or my skills to try and work ahead. Thankfully everything worked on first try!

They all work I promise, just need to let the tubes get warmed up.



Here’s how I mounted the ballasts and ran the conduit for the wiring.

And when I was going through my electrical supplies I found a brand new in box extra Icecap 660 sitting in a storage tote (don’t tell my wife!). Receipt was still in the box! Check the date…..

 

[Newbiereefguy31]

I worked entirely too long on Memorial day on the wiring up of the canopy. But the good news is it’s 90% done. All that’s missing is to drill the holes for the VHOs and to screw in the standoffs - I went ahead and ran the wires to be close enough for final positioning. And I need the VHOs to get here before mounting the endcaps - I don't trust stated measurements or my skills to try and work ahead. Thankfully everything worked on first try!

They all work I promise, just need to let the tubes get warmed up.



Here’s how I mounted the ballasts and ran the conduit for the wiring.

And when I was going through my electrical supplies I found a brand new in box extra Icecap 660 sitting in a storage tote (don’t tell my wife!). Receipt was still in the box! Check the date…..

Just a heads up if I were you I would redact last 4 of your card and expiration date. Apologize if you don’t care. Great looking build!

 

[skyrne_isk]

Just a heads up if I were you I would redact last 4 of your card and expiration date. Apologize if you don’t care. Great looking build!

(Check the date on the receipt, I promise I’m good )

 

[Newbiereefguy31]

Just a heads up if I were you I would redact last 4 of your card and expiration date. Apologize if you don’t care. Great looking build!

(Check the date on the receipt, I promise I’m good )

Hahaha fair so fair

 

[skyrne_isk]

Some minor updates:

Champion lighting said UVL will have the VHO bulbs back in stock second week of June so that’s nice.

Today’s project was to rivet two 39W reflectors together for the whole length needed. Wasn’t too bad to snap them together.



Something I noticed:

This fixture is throwing off a noticeable amount of heat being in a much smaller room now. And it only had the T5s on for a short time. Might have to think about a mini split type situation to keep that room from baking.

 

[skyrne_isk]

Weekend project:

I had a fiberglass tank from old build that I figure will be needed in the transfer of everything. Problem is the hole I drilled in the bottom wouldn’t allow for a schedule 80 bulkhead to make a seal due to too much flex. So that needed patched with the bulkhead moved to a sidewall.

I didn’t take any before pics of the underside of the tank.

Underside


Inside before fiberglass sheet and fiberglass.

After pouring the resin and drilling the new bulkhead.

I used standard 3M bondo from any big box store and added some leftover carbon black pigment I had around. Have never worked with fiberglass resin before, was stupid easy!

https://www.homedepot.com/p/Bondo-1-qt-All-Purpose-Fiberglass-Resin-20122/202077790