Reef nutrition

Casey's 120g Peninsula Build


Supporting Member
A little intro about me and my experiences in the hobby can be found in my welcome thread:

It's been about 2 months of planning and gathering all the equipment but the tank is finally up and running. The move from my 50g cube (running for ~6 months) to this tank didn't go as smooth as planned. It ended up taking about 4 days and I lost a couple fish in the process. Corals are pale but are opening backup up and acclimating to the new lighting. Much of the equipment I carried over from the 50g so some things here and there will be upgraded over time.

My goal for this tank is to be a show display, which was part of the agreement with the wife ;) since this is a room divider between our living and dining area. That means resisting the urge to collect too many frags and instead strive to grow them into large colonies. Other key things are keeping the sand bed relatively clear, no frag racks inside the display, and not too massive of rock work so there still is a line of sight between rooms. Top half will be SPS dominant LPS and softies in the lower half. There will be an equal emphasis between having a lush coral garden and a healthy, probably leaning on the heavier side, fish population.

  • Tank: Pro-Clear Prostar 150 Peninsula 48x24x24 display with a 30" sump. I decided to go with this brand because they are one of the few to have peninsula packages in this size and the price point was good. A couple quirky things here and there but I'm overall pleased with the quality and ease of this setup.
  • Lighting: Aquatic Life Hybrid fixture with 2x Kessil A360s and 4x T5 bulbs
  • Skimmer: Eshopps Axium X-120
  • Return: Reef Octopus VarioS 6
  • Flow: Icecap Gyre 2k and 1k
  • Automation: Apex, ATK, DOS

Shipment day! I ordered the set from Two Tides Aquarium Supply who is an authorized dealer of Pro-Clear aquariums. Tyler there has been extremely helpful with every step and genuinely interested in having you succeed instead of just making the sale and be done with it.

The overflow side of the tank will be the existing rock structure from my 50g cube. Left side I built from rock I scrounged from craigslist and mortar from Two Littte Fishies. I went for a multiple platform type of shape. Not 100% satisfied with how it came out but I'm not too concerned with that since it'll eventually be covered in coral. What I'm really glad I did, and wish I had done it in the past, was drill a bunch of 1/2" holes to stick frag plugs in.

Emptying out the existing tank since the new tank will take its place in the same spot. All the rock and livestock was moved to a 70g pond stock tank the day before friends were to come over to help move the new tank in.

The tank itself isn't too heavy at 200lbs, but maneuvering it up a flight of stairs made me thankful I had 4 sets of hands. My main floor is on the second story. It's a single family home but one of those stack and pack new development tri-level homes.

As I started filling up the tank gallon by gallon with my little 50gpd RODI and feeling the weight, I started to get nervous about the floor supports. Even though I checked out the existing support structures and got the opinion from a civil engineer friend of mine, the thought of ~2000lbs sagging the floor over time started to 'weigh' on me. The first shot is how it looks from below. Luckily there are homes still being built in my neighborhood so I was able to take pictures from one in progress to get a full view of the framing. The tank would sit perpendicular across two trusses with a load bearing wall supporting the trusses on one side and a partition wall on the other, but none directly beneath it. The unsupported span is no more than a couple feet which is why it passed the sniff test but to sleep easy at night, I decided to stop filling and build a support for it using a 4x4 beam to support the trusses directly beneath the tank and a 4x4 post on a leveling jack + 2 2x4s supporting the end to prop it up. Luckily beneath the tank is a walk-in closet so aesthetics were not too important, though I plan to trim it out and paint it later.

And with that, continued filling up the tank, transferred the livestock, and got everything wired up. Still a work in progress to clean up all the wiring. I used an 8u server rack to mount the switch panel and controllers.


Supporting Member
That’s one heck of a set up you got going!! Looking super good! Can’t wait to see how everything turns out!

Sent from my iPhone using Tapatalk
Hi Casey,

This is Tyler with Two Tides Aquarium Supply.

It was a lot of fun working with someone who had as clear of a vision for their tank as you did. Makes my job that much easier and more fun haha

I believe we all see the results here, and most importantly the tank is in a place where you’ll be able to enjoy it as often as possible.

We hope that your tank thrives and keeps growing out just like it is now. If you need any other advice, you’ve got my number [emoji106]

Happy tanking everyone [emoji225] Keep the hobby alive!

To Your Success,
- Tyler Moon

Sent from my iPhone using Tapatalk


Supporting Member
Thanks everyone for the kind words!

Tank is just about at a month old and things are stabilizing. 2 part dosing is dialed in to keep alk at 8.4, phosphates a little high at 0.08, but nitrates have been nearly undetectable. I'm feeding pretty heavy already so may need to dose some KNO3 if they stay that way and colors remain pale. All my SPS that faded during the move have started regaining their color so I'm taking that as a good sign to start introducing more.

Full tank shot as of today 11/20/2020

View from the living room and couch

The small SPS garden grown from tiny frags starting 6 months ago. In general I like to start with small frags because the challenge of growing them is most of the fun. Plus the cost savings :p

The Vivid Rainbow Delight on the left still has a long way to go in recovering its color.

Bought two new frags as guinea pigs before I go wild and fill up all the rock space with frags. RR Pink Floyd which I've wanted forever and a tabling PC Superman.

And here's a shot under the hood.


Supporting Member
The tank is looking really good! How did you get such great pictures?

Thanks! I'm using a Fuji X-T20 camera. It was just a matter of taking the time to set it on the tripod, tweaking the white balance in camera, and manually setting the focus instead of letting the camera try to auto determine everything. Maybe when everything's grown out in a year I can justify getting a macro lens :D
for starter sps frags you sure didn’t hold back. RR pink floyd and PC superman are not usually considered first corals to test your system. From the pics that tank looks extremely tall. Can your arm reach the bottom while moving corals around or cleaning?
tank looks great though, I can’t wait to see it mature.


Supporting Member
for starter sps frags you sure didn’t hold back. RR pink floyd and PC superman are not usually considered first corals to test your system. From the pics that tank looks extremely tall. Can your arm reach the bottom while moving corals around or cleaning?
tank looks great though, I can’t wait to see it mature.

At 24" height it's definitely at the upper limit of my arm reach even when on a step ladder. Most tasks I use these tongs which have been a lifesaver as they're skinny and nimble with just enough gripping strength.

Definitely looking to fill it out with mostly nice(er) pieces :) I was able to snag a pretty decent $22 deal on the pink floyd nub and $30 for the superman so figured why not.


Supporting Member
Been a bit of MIA with everything going on but hoping to do more frequent updates as corals grow out.

Nutrients: Nitrates and phosphates in the first months were very low/undetectable so I started dosing a solution of potassium phosphate (KNO3) and Potassium Phosphate (KH2PO4). Dosing ~2ppm of KNO3 and ~.03ppm of KH2PO4 helped immensely with getting coraline going and brought back much of the coral colors. As I started stocking more fish and increased feedings, I've been able to reduce the dosing but will still bottom out if I cut it off. I've also started dosing Red Sea AB+ since December which appears to have a very positive effect on growth.

Algae: Mild phase of cyano and dinos that have come, gone, and small flare ups every now and then. The portion of the rockwork that started off as dry base is suffering from a lot of bubble algae but I'm holding off on anything drastic like Vibrant until at least to give it more time to mature.

Equipment: Added a kalk stirrer to boost up the pH and increase calcification for the stony corals. It used to swing between 7.8-8.0 and now it's up to 8.1-8.3. Also added an additional Kessil A160 at the far end to help with shading.

Fish: Pretty much fully stocked and acquired all the fish I wanted over the last couple months. 2x ocellaris clowns, 2x chalk bass, 2x lyretail anthias, sunburst anthias, purple firefish, meleagris leopard wrasse, blue star leopard wrasse, bangaii cardinal, and a yellow neon goby.

Corals: Been acquiring a bunch of frags here and there. I'll update progress shots as they come. Not sure how interesting nub shots are :)


Pink Cadillac and The Vinh coloring up nicely now that I have nutrients better dialed in. Everything is gaining their stride and growth has accelerated since mid-December.

This ATL purple rain I had for almost 6 months as nothing more than a brown single nub. Past three months have been a night and day difference in color and growth.

JKR Rainbow Raspberry Cheesecake growing nicely but I'm still trying to pull out more reds in the polyps. Once that happens this will be my first candidate for DBTC :)

Classic monti caps. Hoping to recreate the swirling cups I had in one of my tanks long ago

Also a classic tricolor valida. Lots of nostalgia with this one as it was the first acro species I bought ~10 years ago
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Supporting Member
Beautiful tank! Great progress shots of the corals as well. What are you using to take your photos they look super clear.