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36 gallon tank. Live rock and no coral. The tank has been cycling for 16 days. I’m beginning to see algae on the live rocks and on the sand (before I did my first water change/gravel siphon two days ago). Nitrates and nitrites are still pretty high. I should wait until those levels fall to zero...

Ok, I see. So the inverts that were in the live rocks to begin with didn't really stand much of a chance of survival given how young and immature the tank is. The water temp is 77, the salinity is 1.023. I'll regularly test the water for nitrate, nitrite and ammonium for the next number of...

I'm just starting a tank. I let the water and live sand cycle for about a week and then added live rock. Several sea stars and small crabs emerged from the rock within about 24 hours. But now, about 48 hours after that, those inverts seem to be dying. There are several other visible worms and...