Advice on RO Water for newbie who may have made a mistake (help?)
Hi, this is my first post--sorry I haven't introduced myself yet; I read these forums constantly, but I've never posted before.
I've put myself in somewhat of a pickle and I wanted to see what you guys (who know a lot more than I do about this) think will happen.
I have a 40 gallon heavily planted tank with Co2, high lighting, 7 zebra danios, 1 siamese algae eater, 1 bristlenose pleco, and 21 shrimp (cherries, blueberries, and amanos).
The tank had finished cycling before I added the shrimp, but recently, after I added 15 shrimp and the siamese algae eater, the nitrite levels increased to .25 ppm.
I decided to switch from tap water to RO water because my city puts chloramine in the water and it makes the tap water test at .50ppm ammonia straight out of the faucet.
So I went to get some RO water for a 10% water change to bring the nitrites down, and I foolishly added the water without adding the minerals back in first (like replenish). Will 10% pure RO water without any minerals harm my tank?
What will happen to my ecosystem? =( *scared* what do I do??