Product-details 'Thera A' Formulas 'Thera A' is a balanced diet packed with garlic (which contains allicin compounds) and especially suited to feeding during periods of stress such as: quarantine of new fish; during disease recovery; and before and after netting and movement. Garlic helps to optimise the immune system and protect against parasites. This all-natural food is particularly useful for fish in marine aquaria where chemical treatments might raise the risk of side-effects. 'Thera A' is not a medication， and disease treatments should continue to be used as appropriate. Available in our as 0.5mm micro-granules and larger pellets Size 0.5mm sinking