Hey everyone, my name is Carlos, I’m currently living in Melbourne.
I’ve been wanting a reef tank for a very long time and I’ve finally found a secondhand Waterbox cube 20 on facebook marketplace.
My plan is to keep a couple of clown fish with soft corals on it.
I have the tank running with fresh water and citric acid at the moment to give it a good clean and while I was cleaning the corners with a toothbrush I’ve noticed some small cuts on the silicone. I’m a little bit concerned about them, I’ll attach some pictures to see what you guys think and what my options are.
Thanks for all the helpful information that you guys post here everyday.

I’ve been wanting a reef tank for a very long time and I’ve finally found a secondhand Waterbox cube 20 on facebook marketplace.
My plan is to keep a couple of clown fish with soft corals on it.
I have the tank running with fresh water and citric acid at the moment to give it a good clean and while I was cleaning the corners with a toothbrush I’ve noticed some small cuts on the silicone. I’m a little bit concerned about them, I’ll attach some pictures to see what you guys think and what my options are.
Thanks for all the helpful information that you guys post here everyday.



