1.)When I look at the sand on the side of the tank, I see small spots that are colored red, blueish, and green. What causes these and can they be removed?
2.)My nitrates have been rather high ( 20 - 30 mg
/L ). Is the only way to lower these by changing water? What would you recommend? I am rather disturbed because I recently bought a bulb anemone which died (
) in a matter of a day and a half. It was because the nitrates were to high.
Thanks for suggestions!
58 Gallon Saltwater Aquarium
400 watt Metal Halide
2 Actinic VHO
Sump with protein skimmer
1 Yellow Tang 1 Percula Clown
1 Tomatoe Clown
1 Bar Gobie
1 Sea Cucumber
1 Arrow Crab
4 Peppermint Shrimp
6 Mexican Turbo Snails
Many Clusters of Button Polyps and 1 Cluster of Star Polyps
Many Obnoxious Bristle worms - AHHH