I have a 40g breeder with a 10g sump. I have used tap water until now as i didn't realize how important it was. So i am planning on doing a 100% water change using rodi water. I am wondering if that is going to increase the growth of my corals and if it will be able to grow coralline algae? I haven't really lost many corals and they look relatively healthy besides my zoas, but they never really grew a lot. I also have never managed to grow any coralline algae. Another question i have is whether switching to rodi water will give me the ability to grow coralline algae and improve my coral growth or do i also need to increase the amount of light,etc?
Light:
![20230411_173700.jpg 20230411_173700.jpg](https://test.reef2reef.com/data/attachments/3033/3033275-a425c112c162087e72a67a2ee588d48d.jpg)
Light:
![20230411_173700.jpg 20230411_173700.jpg](https://test.reef2reef.com/data/attachments/3033/3033275-a425c112c162087e72a67a2ee588d48d.jpg)