Derek's Biocube 32 V2.0 Build

DerekCaudill

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Hi, I’m Derek. I’ve been in the reef tank hobby for nearly 20 years now, and like a lot of us, I’ve had my share of tanks over the years. Unfortunately, Hurricane Ian wiped out my 200‑gallon mixed reef a few years ago—it had been up and thriving for about 12 years. That tank actually started as a first-gen BioCube 32 build that just kept growing and evolving over time.
Since then, I’ve kept a couple of smaller setups, but nothing that really reignited the passion. That changed recently when I stumbled on what seemed like a too-good-to-be-true deal on Marketplace—a brand new, in-box BioCube 32 LED with the stand, all the Coralife extras, and even some rock, all for $300. I jumped on it immediately, honestly expecting it to fall apart or get scooped up before I got there. Luckily, it turned out to be legit—the sellers were just moving out of their apartment and didn’t want to set up a tank they’d have to tear down again shortly after.
So here we are. I wasted no time putting together a setup similar to what worked so well for me back in the day. Right now I’m running an InTank media basket and refugium with the Tunze Chic Refugium light, an AI Nero 3 wavemaker, ATO, heater, and a 3D-printed fan setup in the hood paired with an Inkbird temp controller. For lighting, I’ve kept it stock but will be adding two 21LED reef bars to give it a bit of a boost.
 
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Nice! I too have the 32 and will be following along. Tank looks great!

Nice! I too have the 32 and will be following along. Tank looks great!
Thanks! Fortunately I had a slightly smaller tank that helped seed this one. Once I get the 21LED Reef bars adjusted to my liking and my doser set up I think I am going to be on cruise control for a while.
 
Thanks! Fortunately I had a slightly smaller tank that helped seed this one. Once I get the 21LED Reef bars adjusted to my liking and my doser set up I think I am going to be on cruise control for a while.
What exactly did you get from 21LED? I am looking into getting them,
but I'm confused on what exactly to get.
 
Following along!
 
Do you recall your time and intensity settings for the reef bars?
Full intensity and I set them to come on an hour before stock lights came on and 1 hour after.
 
Did you figure out how to setup that timer?
Lol, its its a lil wonky, but I think I did. I havent had a chance to see it though, as I had to work and I got it set up late last night. Hopefully it will be on when I get home. I do think I am going to adjust to 100 percent intensity though
 
Can you elaborate on the fan setup? My tank tends to run a degree or two hotter when the lights are on. Can’t wait to see more.
 
Can you elaborate on the fan setup? My tank tends to run a degree or two hotter when the lights are on. Can’t wait to see more.
I had a friend 3D print this fan adapter that snaps into place where the cables run through the hood. It uses a 40×20mm pc fan to USB. I have both the fan and the heater utilized through the Ink bird temp controller. Target temp is 80 (this is the temp the tank usually stays throughout the day) and I have a heating and cooling activation of +/- 2 degrees. I tested it out the other day and it was able to drop the tank by .5 degrees in just about 12 minutes. So I know it works. And that was on the low fan setting to reduce noise.
 

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UPDATE on the pc fan. It works. However it is quite loud and at max speed is nearly 32db and only moves about 8.5cfm. A friend of mine told me to look into the Noctura PC fans. Turns out they spin at half the rotation my cheap amazon one does, produces only 15db, and cranks out double the CFM. So.....should this fan not keep up, or for anyone wanting to go this route for cooling, look into the Noctura 5v PWM fan and get a 4 pin adapter to USB so that you can hook it up to a cheap phone charger block at your inkbird.
 
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Cool, thanks for the info. I was able to find the bracket on thingiverse. I just have to break out the old 3D printer and give it a shot.
 
Here is an updated pic with the 21LED Reef Bars set at 100 percent. The pic looks a lot more blue than in person. Very happy with the setup.
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