Platies and Bristlenose Plecos, side by side
| Platy | Bristlenose pleco | |
|---|---|---|
| Adult size | 2.4 in6 cm | 5.1 in13 cm |
| Smallest tank | 15 gal57 L | 30 gal114 L |
| Keep | 3 or more | One or more |
| Temperature | 68–79 °F20–26 °C | 72–81 °F22–27 °C |
| pH | 7–8.2 | 6–7.8 |
| Temperament | Peaceful | 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 | Platy | Bristlenose pleco |
|---|---|---|
| 5 gallon | Too small for both | |
| 10 gallon | Too small for both | |
| 20 gallon long | Too small for both | |
| 29 gallon | 5 | 1 |
| 40 gallon breeder | 4 | 2 |
| 55 gallon | 9 | 2 |
| 75 gallon | 12 | 3 |
| 125 gallon | 20 | 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 larger fish 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 platies and bristlenose plecos live in the same tank?
Yes, usually. Platies and bristlenose plecos like the same water: 72–79 °F (22–26 °C) and a pH of 7–7.8. Platies spend their time in the middle and bristlenose plecos on the bottom, so they stay out of each other's way.
What size tank do platies and bristlenose plecos need together?
At least a 29 gallon tank, which carries about 5 platies and 1 bristlenose pleco comfortably.
What temperature suits platies and bristlenose plecos?
72–79 °F (22–26 °C) suits both.
More pairs
- Platies and bettas
- Platies and guppies
- Platies and neon tetras
- Platies and fancy goldfish
- Platies and angelfish
- Bristlenose plecos and bronze corydoras
- Bristlenose plecos and mollies
- Bristlenose plecos and tiger barbs
- Bristlenose plecos and dwarf gouramis
- 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.