L128 Blue Phantom Pleco (Hemiancistrus sp. L128)
The L128 Blue Phantom Pleco is a peaceful and colorful freshwater catfish native to South America. This species is known for its striking blue-gray body with subtle silver highlights and elegant, flowing fins. It thrives in well-maintained aquariums with soft water and stable pH levels.
Perfect for intermediate aquarists, the Blue Phantom Pleco is a bottom-dwelling fish that feeds on algae and detritus. It is generally peaceful and does not require aggressive tank mates. This pleco grows to about 4 inches in length and is ideal for tanks of 20 gallons or larger.
| Feature | Detail |
|---|---|
| Species | Hemiancistrus sp. L128 |
| Size | Up to 4 inches |
| Water Temperature | 72–78°F |
| Water pH | 6.0–7.0 |
| Hardness | Soft to moderately soft |
| Feeding | Algae, sinking pellets, blanched vegetables |
FAQ
What is the ideal tank size for the L128 Blue Phantom Pleco?
A tank of at least 20 gallons is recommended to provide adequate space for this pleco to swim and forage.
Is the Blue Phantom Pleco compatible with other fish?
Yes, it is generally peaceful and can coexist with other non-aggressive community fish, provided the tank is well-maintained and has sufficient hiding spots.
How often should I feed the L128 Blue Phantom Pleco?
Feed once or twice a day in small amounts to prevent overfeeding and maintain water quality.

Ella Wright –
The Blue Phantom Pleco is a beautiful addition to my 30-gallon tank. It’s active during the day and spends most of its time cleaning the glass and substrate. The coloration is vivid and it looks healthy after a few weeks. Easy to care for and doesn’t stress other fish.
Phil Mitchell –
I’ve had this pleco for about two months now. It’s calm and doesn’t chase other fish. I feed it algae wafers and a bit of blanched zucchini. The water stays clean, and it seems to enjoy its environment.
Karen Murray –
Great fish for a beginner-friendly aquarium. It’s not too large and doesn’t require a lot of maintenance. I noticed it cleaning the tank walls daily, which is a nice bonus.