Mini Coco Pods are a larger botanical but their benefits are similar to others..

They are benficial for their tannins (recommended to lightly boil first, the longer you boil the more tannins you will lose. It I'd also a great place for the growth of biofilm. They have many nooks and crannies so that there is always food that only baby shrimp can get too.
 
Boil 5-10 minutes before use, the longer you boil the more tannins you will leech out. (they may tint water slightly but tannins are beneficial for all aquatic life)
 
Quantity: 10