UNS 90L Iwagumi Reef

ironreef · Jul 24, 2026

My first build thread. This all started about 9 months ago with an IM 15g AIO to test out reefing again. The last time I had a reef was a long time ago in highschool. LEDs were brand new to the aquarium trade and I remember buying Cree pucks that I had to drill and tap into a heatsink and solder everything together.

Almost 2 decades later, I'm diving back in a little smarter and a little richer. This UNS 90L was a failing high tech planted tank before I had the good idea to consolidate down to one tank and go all in on this reef. I did the tank transfer about 5 days ago so things are still settling in and the aquascape is still being worked on. I love the biodiversity of reefs, it's truly a different world.

Last shot of the 15g before I did the transfer. It was getting a little cramped.

Equipment:

UNS 90L
Fluval 307
Jebao MOW-3
Penn Heater Controller
Chihiros Pro Inline Heater
Reefbreeder ATO
Chihiros Autodoser
AIPAI A7 III Light

Dosing

All For Reef
Nitrates
Phosphates
Chaetogro
When needed: Calc, Mag, phyto, pods

Right now the plan is to add a second light, try out a different wave maker, get the aquascape the way I want it, and let it settle in.

Gumbies R Us · Jul 24, 2026

Awesome-looking tank! Thanks for sharing!

NyteRyder1 · Jul 24, 2026

Following along. I’m looking at UNS setups for my first reef tank

UNS_Brandon · Jul 24, 2026

Very nice.

BoxH · Jul 26, 2026

ironreef said:
My first build thread. This all started about 9 months ago with an IM 15g AIO to test out reefing again. The last time I had a reef was a long time ago in highschool. LEDs were brand new to the aquarium trade and I remember buying Cree pucks that I had to drill and tap into a heatsink and solder everything together.

Almost 2 decades later, I'm diving back in a little smarter and a little richer. This UNS 90L was a failing high tech planted tank before I had the good idea to consolidate down to one tank and go all in on this reef. I did the tank transfer about 5 days ago so things are still settling in and the aquascape is still being worked on. I love the biodiversity of reefs, it's truly a different world.

Last shot of the 15g before I did the transfer. It was getting a little cramped.

Equipment:

UNS 90L

Fluval 307

Jebao MOW-3

Penn Heater Controller

Chihiros Pro Inline Heater

Reefbreeder ATO

Chihiros Autodoser

AIPAI A7 III Light

Dosing

All For Reef

Nitrates

Phosphates

Chaetogro

When needed: Calc, Mag, phyto, pods

Right now the plan is to add a second light, try out a different wave maker, get the aquascape the way I want it, and let it settle in.

Really clean build

ironreef · Jul 26, 2026

Well Dinos are back. Must've been the transfer that did it. I dealt with dino about 4 months ago when it was in the 15 gallon tank. I believe the cause was low N/P. My N/P isn't the problem right now:

Mag 1140
Calc 410
Alk 8.3
Phosphate 0.08
Nitrate 12.9

Looks like Ostreopsis. Can someone confirm? I will throw in a hygger 3W UV lamp in the display which is what I did last time. Not sure if its big enough for this tank. Edit: I have a green killing machine 9w coming tomorrow.