Hi Everyone, My name is Omar, I am 38 y/o. I purchased a 20 gal. tank about a month ago. It has live rocks and live sand since day one. I did some mistake during the first month of changing the live rocks and disturbing the sand many times for re-scaping the tank few times. I believe I changed the rocks after having some diatom manifestation that I didn't know if it was good or bad at the time.
few weeks ago I added 3 blue damsels, 5 hermit crabs, 2 Mexican snails...They're still alive and kicking.
Then two days ago I got 2 clown fishes, a cleaner shrimp, and couple more snails, and emerald crab. The damsels immediately began attacking the clown fish, so I decided to take them back to the aquarium. and got a purple fire fish instead.
Anyways, changed about 50% of water once during the month. The diatom are almost non existing. my problem is that the nitrate level has been always high ( 80 ppm), I use "(API) Saltwater master test kit" ( pH, Ammonia, Nitrites, and Nitrates)
I tested the water today, after disturbing the sand and the rock formation yesterday to get the damsels out. My test results between last week and today are as follows:
1. pH was 8.0 went down to 7.8 .
2. Ammonia was 0, today is 0.25 .
3. nitrites was under 0.25 ppm, Now it's 0.50 ppm.
4. Nitrates started as 80 ppm, then last week was between 40-80 ppm and is still in this range.
5. Specific gravity has always been between 1.024 -1.026) " Is that ok?"
6. water temperature is set to 78 ?!? so the thermometer's readings has always been 77.9, didn't change a lot ( 0.1 ) more or less>
Today I was visiting an aquarium store near by. they had the " red sea" Reef Mature Pro kit on clearance and I got , as I got home I began wondering if such a kit can be used in a tank that already has live creatures in it or not?? I would really appreciate an answer to this question. Thank you .