So I bought a new fish tank the other day at petco and I filled it up and put rocks in and all of that... but the next day I noticed the water looked a tiny bit green. I don’t know if it’s the glass and and my blue wall making the inside of the tank look green or what. But this may be a reason...I bought some driftwood from petco and put it in my new tank and soaked it for like 2 hours. So does anyone have an answer for this?