24K Gold Torch and the Rest: What Torch Coral Names Actually Mean

Every gold torch on the internet is called 24K. There is no registry, no standards body, and nobody checking. Any vendor can print the name on any gold torch and nothing happens to them.

That is not a scandal. It is just how trade names work in this hobby, and once you know it you can stop shopping by name and start shopping by animal. This page is how to do that, and what the common torch names actually mean when somebody uses them.

What “24K Gold” means and does not mean

It is a market grade, not a registered cultivar. It describes a look: a gold or yellow-gold torch, usually Euphyllia glabrescens, often with a paler or contrasting tip. Two animals sold under that name can come from different oceans and look meaningfully different in your tank under your light.

The same is true of every other name on the list. Holy Grail, Dragon Soul, Hellfire, Joker, Sun God. Some began as one grower’s specific piece and became a look. None of them are certified by anyone.

So if a shop tells you their gold torch is a certified or registered cultivar, ask who certified it. There is no correct answer to that question.

What to judge instead

Four things, all of which you can check in a photograph before you spend anything.

1. Polyp extension past the skeleton. A healthy torch pushes its polyps out past the corallite rather than sitting on top of it. A photo where the polyps look short and bunched is either a stressed animal or a picture taken before it settled.

2. The base, not the tips. Tissue should meet the skeleton cleanly, with no receding line and no exposed white. Most torch photos are shot from above with the tips glowing under heavy blue, which shows you color and hides the one thing that predicts survival. If you cannot see the base, ask for a photo of the base.

3. Even color across every head. On a multi-head piece, one pale or pulled-in head is the head that is losing. It will usually be the first to go.

4. Consistent lighting. Heavy blue makes everything look expensive. A shop that also shows the animal under neutral light is telling you what it actually looks like.

Why torches specifically get killed by cheap buying

Euphyllia has long fleshy polyps and a thin skeleton. That is why people want them and it is exactly why they travel badly. A torch bagged while expanded gets bruised against its own skeleton for every hour of the trip, and abraded tissue is an open surface.

Then there is brown jelly: a fast brown slurry that can take a head in a day or two, associated with ciliates blooming on damaged or dying tissue. Whether the ciliates cause it or arrive after is argued about. What is not argued about is the trigger, which is injury and stress.

A torch that was bruised in a bag, sat in a wholesale vat, got fragged four days later and shipped again is carrying several injuries at once. The full version of that chain, with the measured numbers, is in why the cheapest coral costs the most.

Keeping one alive once it is in the tank

Flow. Moderate and indirect. Enough that the polyps sway, not enough that they are pinned back. A torch held flat by a powerhead cannot feed and will retract until it stops opening.

Light. Low to moderate. Torches do not need or want to be at the top of the tank. Start it low and shaded for a week, then move it up gradually over the next two. The most common way people kill a healthy torch is putting it straight under the light they eventually want it under.

Space. Torch sweepers reach further than most people expect, several inches in some cases, and they will burn a neighbor overnight. Give the piece a clear radius and assume it grows into it.

Feeding. They take meaty food and they do not require it. If you feed, feed lightly and target it. Overfeeding a torch does not make it grow faster, it makes your nitrates climb.

Stability over correction. Alkalinity swinging a full point burns tips on Euphyllia faster than almost anything else in the tank. If your alkalinity is 8.2 and stable, leave it at 8.2. Do not chase a number because a chart says so.

If yours is already in the tank and not opening, start with why is my torch coral not extending.

The names you will see, and what they usually mean

The one row in that table that is a real, checkable distinction is the last one. Cristata is a different animal, not a different marketing word.

What we do with ours

Every torch in our system is dipped on arrival, held long enough that we have watched it open, close and open again on a normal cycle, and photographed under known lighting so the base is visible. A torch that is going backwards does not get a price and does not go in a box.

WYSIWYG listings are the exact animal. Anything at quantity above one is labeled “Almost WYSIWYG” — same colony, cut when you order.

We use the trade names above because that is what the market calls these animals, not because they certify anything.

The Underwater Gardener grows aquacultured corals in Key West, Florida (FL Aquaculture Certificate #AQ0254072). Corals ship UPS Overnight every Tuesday and Wednesday. Visit the shop at 2816 N Roosevelt Blvd, Key West.