Silver dollars not growing

[Argenteus]

How can I grow them bigger? I have 4, 3 inch Silver dollars in a 45 gallon. I've had them for a couple of months and they haven't grown any. I feed them about 5 medium sized pellets each everyday consisting of crushed spirulina discs and sinking shrimp pellets. I change about 20-25% of the water every week. Am I feeding them enough? I don't want to overfeed. Or is my tank too small? I've read that fish grow quicker in larger tanks.

 

[sgvaldesm]

How can I grow them bigger? I have 4, 3 inch Silver dollars in a 45 gallon. I've had them for a couple of months and they haven't grown any. I feed them about 5 medium sized pellets each everyday consisting of crushed spirulina discs and sinking shrimp pellets. I change about 20-25% of the water every week. Am I feeding them enough? I don't want to overfeed. Or is my tank too small? I've read that fish grow quicker in larger tanks.

[snapback]357111[/snapback]​

4 inches is not that small... I have four silver dollars in a 100 gallon tank for over a year and they are like 5 inches.... this fish can grow bigger, but they need a bigger tank.... I'm afraid your tank is too small...

 

[freddyk]

You've only had them two months. It's not a race. The maximum size of a fish is a size they reach over their entire lives (they never stop growing) and at 3" their growth has already slowed quite a bit. Just enjoy the fish, and keep in mind overfeeding them to try to force them to grow faster then natural isn't good for the fishes health or the tanks cleanliness.

 

[CFC]

If you give them a meatier more protein rich diet then they will grow more but silver dollars are fairly slow growing fish anyway in my experience.