when can add sps

[Dakota]

ok upgraded to 90g from 45 got 2X250 mh 90 so pounds of live rock and so on. i took everything including water from old tank and tranfered directly to this new tank. lost 1 fish in move and that was it not sure what happened? that tank has been setup now for almost 2 months now . had a little bloom of algea for the first week or so and now all gone getting coralinne growing like crazy on tank walls just wondering when ok to start adding sps coral which will be dominat species in tank. i know most literature say 1 yr? must i wait this long also old tank was up for 3 years and had very mature rock. thanks for advice

[mps9506]

Only one way to find out!
If you feel your tank chemistry is stable (ammonia, nitrite, nitrates, pH, alk, Ca) then by all means try out some hardy sps frags.
The one year rule of thumb is meant as a discouragement to newcomers throwing in wild acro colonies into their first tank that has been setup for three months. That is a def. dead acro in most cases. I have setup tank and added sps much sooner than one year. It's all about providing the corals what they need. In the case of SPS corals it is good water quality, good water flow and light. Pretty simple in those terms. If you can meet those requirements then add some frags and find out what your tank is capable of keeping. don't be discouraged if you lose a frag or two, just figure out what you need to provide and do it
Mike

[Dakota]

all my tank parms are fine i add kalk nightly and add bionic regualry to keep cal and alk up test weekly with salifert test kits and everything has been holding stable for the last month. evoltion 500 skimmer so good there and do 15 %percent bi weekly water changes . im not a newbie just new to the sps corals will be another month before i add anything anyways due to out of country vacation just kinda wanted to get idea on time so i can research possible new additions. will also be getting either kalk reactor or calcium reactor soon just havent decided which to buy. thanks for your timely reply.

[mps9506]

Well just for research sake...
I would recomend the following sps corals to start out with, and preferabbly frags or small captive grown colonies:
Montiporas (any and all, they are all hardy). Poccillopora, Hydnophora, and if you want some acros some of the hardier ones would be millepora, most of the staghorns, slimers, and honestly most of the "ORA acros" seem to be hardy and more than willing to grow.
HTH
Mike