Automatic Fish Feeders
An automatic fish feeder is a solid investment for any aquarium. Like any pet, fish need the correct amount of food at regular intervals, and you are sometimes too busy to give it to them. There's no shame in it, but there's no excuse for it either with these great automatic fish feeders. And once you have one, you can stop fretting about who will feed your fish twice a day while you are on vacation!
(Fish feed according to day/night cycles they are only aware of if cued by lighting; for proper fish nutrition, make sure you also have an automatic lighting timer for when you can't be there to flip the switch.)