These 2 Silver Dollars were surrended a few weeks ago, they are best in larger groups.
 
Size: 6 Inches
Tank Size: Minimum 125 gallons (group of 5+)
Care Level: Moderate
Diet: Omnivore – veggies, algae wafers, pellets, fruits
Aggression Level: Peaceful (may nip slow or long-finned fish)
Compatibility: Best in schools; good with other robust, peaceful fish
Notes: Needs open swimming space; plant-safe species recommended or use fake plants