water problems

[keithb7]

my tank was doing awesome and i even had a damsel living in it for two weeks along with snails and hermits. i added my clown and a firefish goby after a water change. all my levels were fine except the alkilinity was through the roof. any explanation my heart is broken for those two fish......

 

[earlybird]

Define "through the roof." Are you using tap water?

 

[keithb7]

nope RO. i had a gagonia in there that was given to me but it was to big and i took it out. before i took out the plant my fish were fine, i got back home and they were dead.

 

[oceansidefish]

What kind of salt are you using???? Alot of people have been having trouble with reef crystals