auto-water change in a nano how much how often?

[phi delt reefer]

the brs 50ml/min units are LOUD. heard that from the two people who i know own one. One even sent it back twice - both times BRS advised it was normal noise.

for such a small tank bite the bullet and just do it weekly or every two weeks. Its not going to be more than what fits in a 5 gallon bucket.

if you still want to do it and automate it - get one of those auto water changer things. Expensive but it has fail safes in place which is what you want incase something goes wrong.