Silver dollar tank mates
A schooling herbivore that eats every plant in the tank. Needs real lateral space and is incompatible with any planted aquascape.
Common mistakeAdding silver dollars to a planted community is how keepers invent a bare hardscape within forty-eight hours. Every stem and rosette gets eaten. Plan a plant-free or tough-only layout and a 300L-class school tank — not a show aquascape with 'just one dollar for interest.'
Each name below opens a pair check with Silver dollar. That check is the decision, not the list itself.
Usually safer companions
Conservative shortlist from this profile. Open a pair page before you buy.
The Silver dollar profile lists Bala / silver shark as both safe and a recommended pairing. Bala / silver shark schools in groups of 5 or more, so plan room for the whole group rather than one fish. Bala / silver shark grows bigger than Silver dollar (35cm vs 12cm). Stock the Silver dollar group large enough to outnumber the Bala / silver shark, or the smaller fish ends up bullied or off food.
The Silver dollar profile lists Tinfoil barb as a recommended pairing. Tinfoil barb schools in groups of 5 or more, so plan room for the whole group rather than one fish. Tinfoil barb grows bigger than Silver dollar (35cm vs 12cm). Stock the Silver dollar group large enough to outnumber the Tinfoil barb, or the smaller fish ends up bullied or off food.
Risky or situational
May work with more water, a mature system, or a species-only setup. Read the pair page before you experiment.
Marked risky or situational on the profile. Tank length and group size change the outcome more than a temperament label does.
Marked risky or situational on the profile. Tank length and group size change the outcome more than a temperament label does.
Marked risky or situational on the profile. Tank length and group size change the outcome more than a temperament label does.
Marked risky or situational on the profile. Tank length and group size change the outcome more than a temperament label does.
Giant danio is flagged predatory. Equal-size adults usually coexist, but the moment one is stressed, sick, or smaller after a moult, it becomes prey. Run the pair checker before stocking.
Marked risky or situational on the profile. Tank length and group size change the outcome more than a temperament label does.
Marked risky or situational on the profile. Tank length and group size change the outcome more than a temperament label does.
Pea Puffer is flagged as a fin-nipper and Silver dollar carries the long-finned risk profile (veil tails, trailing fins). Expect torn fins within days unless the nipper is in a proper group and the long-finned fish has plenty of cover. Pea Puffer is flagged predatory. Equal-size adults usually coexist, but the moment one is stressed, sick, or smaller after a moult, it becomes prey. Pea Puffer is rated semi-aggressive, so expect chasing, fin damage, or display behaviour directed at Silver dollar. Run the pair checker before stocking.
Fish to avoid with Silver dollar
Predation, aggression, or space rules on this profile. Treat these as poor default mixes.
None flagged as a hard avoid on this profile.
Tank size and groups
- Published minimum for Silver dollar: 300L. Group minimum 5 (schooling).
- Compatibility changes when the tank is too short for turning, too little for a real school, or too warm for one species and not the other. That is why pair checks include tank context, not only temperament.
- Nearest litre hub to this minimum: 300L hub.
Easier alternatives to consider
Hardier first-tank names from the library. Still read the profile. Not a substitute for reading this one.
Plan before you buy
Start a pair check with Silver dollar, or open a starter plan with the top safer companions in the builder.
Tank hubs: 300L
Related reading
Guides that list other fish with the same trait, so you can plan around the group rather than one row.
- Schooling & group fish →
Plan the group of 5+ before choosing tank mates.
- Peaceful community fish →
Other peaceful species to shortlist beside Silver dollar.
Filtration & heating
A 300L minimum tank for Silver dollar needs a filter rated for at least 1200L/hr turnover and a heater maintaining 24–30°C.
Similar fish (same category)
- Banded leporinus · min 300L
- Denison's / red-line torpedo barb · min 250L
- Giant danio · min 200L
- Rainbow / red-tailed black shark · min 200L
- Rosy Barb · min 180L
- Scissortail Rasbora · min 150L
- Gold / Chinese barb · min 120L
- Odessa Barb · min 120L
Silver dollar tank mates — quick answers
- What fish can live with Silver dollar?
- Usually safer companions on this hub include Bala / silver shark, Tinfoil barb. Open each pair check before you buy — the list is a shortlist, not a guarantee.
- What tank mates should you avoid with Silver dollar?
- Avoid any species that competes for the same territory, eats juveniles of this species' size class, or requires very different water parameters.
- What size tank do Silver dollar need for a community?
- 300L is the planning floor for adult swimming space and bioload. A 400L+ tank is the more comfortable long-term footprint. Length and depth matter as much as raw litres for active or territorial fish.