The chilly dipper
Fish Crazy
whats your secret 


Purple tetras are hard to come by, I would snatch them up. However, they are likely wild caught so you would want to quarantine them first. I've never kept a flying fox but I've heard that they can be aggressive.
A Flying Fox is too big for a 60L and if you want something that eats algae (or something that you can see) Kuhli Loaches aren't an option. I would suggest a group of 5 Otocinclus or if you can find them (and your wallet allows it) 5 Zebra Otocinclus. Remeber to supplement their algae diet with a slice of cucumber/zuccini every so often.
AmazonFTW

