problem with acro.

[invertinoob]

i have 3 birdsnest corals (orange with green tips, ora green, ora bop} as well as a pocillapora, and a yellow stylophora. i also have a hydnophora and a cyphastrea coral. all of these corals are showing great color and growth in my system. for what ever reason, whenever i add acropora to the system, it always browns out or dies. i have only added three pieces so far and only one brown twig remains. i keep my nutrients super low and i have 6x39w t5ho lamp with ati blue+ 3x, atipurple+, aticoral+, and one actinic. my nitrates never creep over 10 anymore using api test kit. also phosphates undetected. i don't see why i would have success with other sps but none with acro and i feel like i am doing everything right.

 

[LoJack]

Birds, Pocci's, and Stylo's will tolerate the higher nitrates which is why they're considered to be more novice friendly SPS, but 10 ppm is too high for acro's.

About 2-5 maximum for nitrates, anything higher, and they'll brown out on you or start RTN'ing