Fish are remarkable creatures and can survive for relatively long periods of time with very little food - just as they may have to in the wild. Even so, while youre away on a short break or holiday its crucial that you provide them with a source of balanced nutrition to help keep them in peak condition. Interpet Food Blocks are just the ticket. The special formulation includes all the necessary proteins, minerals and trace elements to keep your fish healthy, active and colourful whilst helping to balance water quality. Each food block contains freeze dried tubiflex, daphnia, brine shrimp and mosquito larvae.