Soft enough to move with the filter flow.
Movement is the difference between a tank that looks alive and one that looks arranged. Silicone bends with the flow; a rigid plastic ornament stands exactly where you put it, permanently.
Taxes calculated at checkout
Colour: Pink
Why you'll love it
Rigid plastic coral reads as an ornament immediately. Something that moves on the filter outflow reads as alive, and it is the single biggest difference between a tank that looks decorated and one that looks planted.
Bettas and fancy goldfish tear on hard resin. Silicone has give in it, so a fish that swims into it is pushed aside rather than caught.
Bright coral suits a marine look tank and looks wrong in a planted freshwater one. The six options exist so you can match the tank you actually have.
Good fit if
Look elsewhere if
A tank full of rigid objects reads as a display case. Everything is still except the fish, and the eye stops finding it interesting quite quickly. In natural water almost everything moves a little, and reproducing that is what separates a tank that holds attention from one that is simply decorated.
Silicone is soft enough to respond to ordinary filter flow. It sways rather than whipping about, which is the right amount, and it means the decor changes slightly through the day as flow patterns shift. It is a subtle effect and it does more for a tank than an extra ornament would.
Rigid plastic ornaments carry moulding seams, and those seams stay sharp. Long finned fish tear on them over weeks rather than immediately, so the damage accumulates without an obvious cause and is often blamed on fin rot or a tankmate.
Silicone has no seams to speak of and nothing rigid enough to cut. For a betta, a fancy guppy or a veiltail goldfish that makes it one of the safer things you can put in a tank, and it means you can place it where the fish actually swim rather than tucking it out of the way.
Put it where there is some flow, or the movement never happens. Near the filter outflow but not directly in the jet is about right, and in a tank with very gentle circulation it is worth positioning it in the strongest area you have rather than in a still corner.
The weighted base holds it upright in gravel or sand once pushed in far enough to be covered. Check it after a week, since a base that is only sitting on the surface can be tipped by a large fish, and a coral lying on its side is doing nothing for the scape.
In the box
How it works
Shop by pet or category to find exactly what your cat or dog needs, no wading through thousands of listings.
Check out securely with card, PayPal or one tap Apple Pay & Google Pay. Free delivery over £45.
Fast, tracked dispatch straight to your door, and a happier pet before you know it.
The details
Loved by real pet parents
Everything else in there is rigid and the moment the filter starts you can tell it is all ornaments. This silicone one bends in the outflow and never stops moving, which changes how the whole tank reads. I put it right in front of the return so it gets the most flow.
There are six colourways and I spent a while deciding, because bright pink would have looked absurd next to my planting. Coral blue sits well against green and does not shout. At 13 by 10 by 13 cm it is a good mid size piece rather than a centrepiece.
It is only 108 g so with the flow pointed at it the base did creep across the sand in the first week. Sinking the base an inch into the substrate fixed it completely. Worth doing before you decide it does not stay put, because it absolutely does once it is bedded in.
I have moved everything sharp out of my betta tank over the last year and this went in as a replacement for a resin piece. Silicone gives when he swims into it so he is pushed aside rather than caught. No moulding seams anywhere that I can find either.
I went for the spiked green rather than one of the brighter options because I wanted something that would not look obviously fake. From the sofa it passes for a soft coral, and the movement is what does it. Colour has not faded in five months of water changes.
The yellow I received is softer and more cream than the saturated shade in the listing picture. In the tank under a white light it looks fine and my wife prefers it, but it was not what I ordered in my head. The sway and the softness are exactly as described.
Silicone has turned out to be easy to deal with during a water change, since algae wipes off between finger and thumb rather than needing a brush. It goes back in and springs straight back to shape. Six months in it still looks new.
I have a fish only saltwater setup and wanted the coral look without any of the actual commitment. The coral purple one sits in the middle of the rockwork and moves nicely with the powerhead. The weighted base is a plain grey slab though, so it needs tucking under a rock or it gives the game away.
The dimensions are stated plainly and they are correct, so this is on me for not picturing 13 cm properly. In a 120 litre tank it is a small accent rather than the feature I had in mind, and I will probably order a second. The silicone and the movement are both exactly as promised.
Good questions
Yes. Inert silicone does not leach and holds up in saltwater. Rinse it in tank water before it goes in.
The base is weighted and sits in gravel. In a strong outflow it will lean, which is the intended effect rather than a fault.
Slowly under strong lighting, as all artificial decor does. Expect it to soften in tone over a year or two rather than stay showroom bright.
Yes, silicone is inert in both fresh and salt water. Rinse salt creep off it during maintenance the same as anything else in a marine setup.
The base is weighted and holds well once pushed into the substrate until covered. A base sitting on the surface can be tipped by a large fish, so bury it properly.
Slowly, over years under aquarium lighting. Keeping the tank out of direct sunlight is what makes the difference, since sun fades far faster than a lamp on a timer.
Last reviewed 30 August 2026