Water type
Marine
Fits
Egg-crate frag racks
Part no.
MPPK817
Pieces
50 plugs
Cost per plug
86c
Material
Kiln-fired ceramic, pH neutral
Colour
Purple
Frag Plugs - Purple 50pk
A purple plug is the fastest way to spot which frags are new when you're scanning a packed frag rack. The EcoTech Marine Frag Plugs – Purple 50pk are pH-neutral, kiln-fired ceramic discs with a scored top face that coral glue and gel-based cements key into immediately, on a slotted base built to sit straight into a standard egg-crate frag rack. Fifty plugs in one bag covers a full colony workover, and the colour makes recent cuts easy to pick out at a glance in a mixed display.
Key features
- High-visibility purple – makes recently placed frags easy to spot against rock and other plug colours.
- Scored top surface – gives coral glue and epoxy putty a rough face to key into, so frags bond fast and don't slide off before they've encrusted.
- Slotted base – sits directly into standard egg-crate (light diffuser grid) frag racks with no extra fittings.
- Kiln-fired, pH-neutral ceramic – won't shift tank chemistry the way some resin or cement plugs can.
- Bulk pack of 50 – covers most full-tank fragging sessions without reordering mid-job.
Specifications
| Colour | Purple |
|---|---|
| Material | Kiln-fired, pH-neutral ceramic |
| Pack quantity | 50 plugs |
| Base fitting | Slotted, fits standard egg-crate frag racks |
| Water type | Marine (reef) |
| Brand | EcoTech Marine |
Which colour do I need?
| Colour | Best for |
|---|---|
| Black | Blending into dark rock and minimalist frag racks |
| Mixed | Colour-coding coral types or customers at a frag swap |
| Natural | Blending with live rock and lighter aquascapes |
| Purple | High-visibility marking in a mixed display |
Suitable for, and not suitable for
Suitable for SPS, LPS and soft coral frags glued on with reef-safe cyanoacrylate or epoxy putty. Not a substitute for a magnetic frag rack, and not intended for permanent display-rock mounting – these plugs are for grow-out and swap.
What's included
50 x Purple EcoTech Marine ceramic frag plugs. Coral glue, frag rack and cutting tools are not included.
Goes well with
- EcoTech Premium Frag Glue – matched cyanoacrylate gel for mounting to these plugs.
- Seachem Coral Crete – two-part epoxy putty for awkward cuts.
- Aqua Medic Frag Pins (20pcs) – for mounting loose frags direct to rock.
Warranty and delivery
Ceramic consumable, sold as-is; contact us if a bag arrives damaged in transit. Standard delivery Australia-wide.
Common questions
Will the purple dye leach into my tank water?
No – the colour is fired into the ceramic body itself, the same pH-neutral material used across the range, so it won't leach into reef water.
Does the colour affect coralline algae growth on the plug?
Not that EcoTech documents – coralline coverage depends on tank parameters and lighting, not plug colour.
Can I use these in a freshwater or planted tank?
No – frag plugs are made for coral fragging in marine and reef systems only.




