Hello,
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These are the fishes which looks like bubbles (kidding).
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You could've definitely seen these fishes on discovery channel and animal planet. These fishes belong to cichlidae family. The exact number for the type of oscar fishes is mot mentioned but i will let you know the top 10 oscar fishes which you must see;
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• Albino fish
• red fish
• tiger fish
• blue oscar
• florida oscar
• black oscar
• lemon oscar
• white oscar
• veil tail oscar
• lemon oscar