Haven't updated this thread in a while but this is what I've been up to since October (big new projects):
The new project is the start of my journey into coral spawning, focused on
Acropora millepora and
Euphyllia species. The goal is to build a small-scale, modular spawning system that will allow for controlled lunar and thermal cue experiments, following much of the framework used by Rich Ross, Jamie Craggs. and others.
Here’s what’s in progress so far:
The new setup will use four 60-gallon breeder tanks (thank you Petsmart sales), arranged in two stacked pairs, each pair sharing a 40-gallon breeder sump on a heavy-duty steel rack. Each tank can run as part of the shared loop or be isolated when needed for spawning events or quarantine. The design prioritizes flexibility—easy to drain, easy to clean, and ready for fine-tuned control over lighting and flow.
Next to these will be a separate rack of 50-gallon Rubbermaid feed tubs, which will serve as conditioning and larval-rearing systems. These tubs are durable, simple to plumb, and provide a stable environment for initial fertilization work, larval settlement, and early grow-out before colonies transition to the larger systems. The long-term goal is to document the entire process from gamete release to settled, tank-raised colonies—and to develop repeatable protocols for small-scale, at-home coral spawning.
All spawning and conditioning systems will be Apex-controlled, giving full automation over temperature, lighting, and flow. I am considering trying to modify the protocols I'm using to design the system to use a GHL Profilux. I still have time to finalize the plan.
Filtration and life-support include:
- 40-gallon breeder sump with mechanical filtration and dedicated return section
- Regal 150INT protein skimmer (Reef Octopus) for each pair of spawning systems
- Versa S2 Return Pumps on each system
- 2x Radion XR15 Pro lights per tank
- 2x AI Orbit Gyre pumps per tank
- Inline heaters and titanium probes synced to the controller
- Redundant ATO sensors and backup aeration
- ESV 2-part dosing (Calcium/Alkalinity) via GHL dosing heads
- Tropic Marin Pro Reef Salt and stable RODI top-off
Conditioning will begin with temperature, lunar, and photoperiod synchronization cycles, followed by controlled spawn induction based on current research and field data.
I'm also about to start building a stand for a 250-gallon grow-out fiberglass tub that will house the primary broodstock colonies (plus backup colonies from my SPS system

) and will also serve as the grow out system for any settled colonies. This system will use 3x Radion XR30 G6 Pros and 2x AI Blades 66" with a Regal 200INT skimmer, tied into the existing GHL Profilux system for dosing and monitoring.
Secret Basement Lab Timeline (2025–2026)
- November–December 2025: Finish assembly and start running the quarantine system and 250 gallon tub system
- January–March 2026: Finish assembly of all spawning and conditioning systems. Begin long-term environmental calibration (temperature, salinity, lighting, lunar phase simulation). Start acquiring and quarantining additional broodstock colonies of Acropora millepora, and Euphyllia glabrescens.
- April–July 2026: Conditioning phase — feed intensively, maintain stable nutrients and synchronize photoperiods with natural equatorial daylight cycles.
- August–September 2026: Implement lunar cycle simulations and begin monitoring for gonad development and gametogenesis.
- October 2026: Final pre-spawn conditioning. Simulate seasonal temperature shifts and adjust photoperiods to match natural Great Barrier Reef spawning cues.
- November–December 2026: Target spawning window for Acropora millepora, and Euphyllia glabrescens. Conduct nighttime observation, gamete collection, and controlled fertilization.
If the new systems aren't stable in time to hit these goals, I'll try the following year. I'm not going to rush things, if I need to wait then I need to wait, no one is holding me to this schedule but me.
Progress so far:
-The new 60 gallon QT is up and running, fully cycled and ready for coral
-Coral growth in my 400 gallon system is booming
-Waterbox is dealing with a bacterial bloom but all of the LPS are thriving, I added a UV sterilizer to combat the bloom. I need a new skimmer for this tank because I dropped the skimmer when moving, it cracked and I can't get it to prime correctly even though I sealed the cracks with epoxy
-40B is thriving, the softies are all spreading, the mushrooms are all plump and the rockflower anemones are all happy and colorful
-First coral imports are coming in this Thursday and next Friday, I'm taking things a little slower than I initially anticipated. I want to ensure I have my QT/acclimation process down for a variety of species before I start importing colonies to spawn
-The 250gallon tub has not been set up yet but with any luck it will be dark cycling within the month
-I'll be moving some colonies I've been growing in my runner tank to my CADE (same system) within the next two-three weeks to help fill in some spaces
-Ordered a @Battlecorals Battlebox to add a little more to my collection
-Starting to think of fish to add to the CADE, I lost 2x lyretail anthias, a blonde naso tang and jawfish randomly and in separate events seemingly randomly so I have some room. I'll definitely be getting another naso tang but I'm open to suggestions for other adds. The 40B could use a few more fish too, maybe a goby pair of some sort and a few more bangaii cardinals. The livestock in the Waterbox is staying as is for now as the parameters are all in a range I'm happy with for LPS growth.
Life's gotten crazy the past few months but I'm still chugging along with my plans. I'll share some pictures later this week. In a few weeks I'm going to start fragging a bunch of my colonies, stay tuned for frags for sale/trade
Eddie