Hi I'm a newbie here and started a 2ft Reef tank for abt 1 1/2 month. My fishes kept dying one after another. My PH is 8.1 and NO2 is 0.05 which I think should be ok. Now I left only a Royal Dottyback, a Blue Devil Damsel that are the longest surviving species since the begining I bought in 3 weeks ago. I've another Seahorse I bought for abt 1 week but refusing to eat which I tried to feed them on Frozen Brian Shrimps. Can any brother pls advise me b4 all my fihes die.