Fan Shrimp, these are big and so they will definately not be eaten by angels. They are not very colourful in fish stores and as they malt they will gradually change their colour and have a very nice colouration - usually a cream colour stripe down their back and red for the rest.
Also, any shrimp do better in hard, alkaline water, this helps their shell develop during malting. The same conditions are required for snails.
Obviously you can successfully keep them in soft water, they just prefer hard and will show up more as they feel more safe.
Whatever you decide on good luck.
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