Key points for successful sps:
- stability is key.....not a spot check and this is where I’m at today
- Alk is important. It doesn’t matter if its 7-12 as long as thats what they’re used to and that where they grow at
- The higher the alk the faster the coral bones will grow. Such that if your phosphate/nitrates are too low its bones will out grow the skin and it will die. Lower Alks ~7 is more important for low nutrient systems in which you want your phosphate and nitrates lower
- As far as lighting w/ LEDs you’ll want your PAR 250-500, but you can keep most between 250-350. Consistent Lighting is also important.....I had done a big water change after a month and killed some corals cause my PAR had jumped from 300=>500 cause the water was much clearer. Its the little things
- If you run a calcium reactor and keep your all stable, calcium tends to not be an issue, but your parameters there weren’t horrible
- Med to High flow is also important, but don’t blast the coral on one setting, mix it up with the flow of your tank. SPS are pretty picky about flow/light if they aren’t doing well and your parameters are perfect then move them to a different spot.
- Potassium is something that I believe hasn’t been mentioned. If your potassium is less than 400 it leads to RTN and the SPS will die.
- Once a coral starts to bleach out/RTN parasites get in there and finish it off. One way around this is a UV light, its saved me a colony from time to time if I forgot to check the potassium and it dropped below <400.
- Even if you do everything right, SPS will still die. I have two tanks and keep back up frags of the SPS I like just in case something weird happens in the tank
Below is my proof that it works. Yet, everything in reefing is what it is....each person has what works for them....yet, stability with less fluctuation in your parameters with appropriate lighting and flow will lead you to success.