Newbie here with some questions about my cycling tank

[naesco]

Originally Posted by Sumfingwong

He told me I can use Damsels, and I have read where people can use them. They seem happy, and not stressed.. they are super blue right now. If I see any signs of stress, I will return them. However, this weekend.. my 2 buddies are doing a water change, and they said they will drop some buckets off at my house when they are done. Both tanks have been running for 2+ years. Would it be a good idea to use their water?

Thanks for all the help

He was wrong and if he is a LFS run don't walk to another LFS. If you are new to the hobby it is easy to make mistakes when you rely on people who should know better.
The ARE being stressed.