Angelfish and Bristlenose Plecos, side by side
| Angelfish | Bristlenose pleco | |
|---|---|---|
| Adult size | 5.9 in15 cm | 5.1 in13 cm |
| Smallest tank | 55 gal208 L | 30 gal114 L |
| Keep | One or more | One or more |
| Temperature | 75–86 °F24–30 °C | 72–81 °F22–27 °C |
| pH | 6–7.8 | 6–7.8 |
| Temperament | Semi-aggressive | Peaceful |
| Swims | In the middle | On the bottom |
What size tank do they need together?
Each row shows how many of each the tank carries comfortably when these are the only two kinds in it.
| Tank | Angelfish | Bristlenose pleco |
|---|---|---|
| 5 gallon | Too small for both | |
| 10 gallon | Too small for both | |
| 20 gallon long | Too small for both | |
| 29 gallon | Too small for both | |
| 40 gallon breeder | Too small for both | |
| 55 gallon | 2 | 2 |
| 75 gallon | 2 | 3 |
| 125 gallon | 4 | 5 |
Open this pair in the stocking calculator to add more fish or try your own tank.
How to make it work
- Add the calmer, smaller fish first, and the angelfish last.
- Use plants, wood or rocks to break up the view across the tank. Fish that cannot see each other all day fight less.
- Watch closely for the first week. Torn fins, hiding or a fish that stops eating mean it is not working.
- Keep a spare tank or a divider ready, so you can separate them the same day.
Questions and answers
Can angelfish and bristlenose plecos live in the same tank?
Yes, usually. Angelfish and bristlenose plecos like the same water: 75–81 °F (24–27 °C) and a pH of 6–7.8. Angelfish spend their time in the middle and bristlenose plecos on the bottom, so they stay out of each other's way. Angelfish can be pushy, so watch for chasing in the first week.
What size tank do angelfish and bristlenose plecos need together?
At least a 55 gallon tank, which carries about 2 angelfish and 2 bristlenose plecos comfortably.
What temperature suits angelfish and bristlenose plecos?
75–81 °F (24–27 °C) suits both.
More pairs
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- All pairs
Based on each species' adult size, water range and temperament (Seriously Fish, FishBase) and the rules of our stocking calculator. Individual fish differ: this is a guide, not a guarantee.