help with stn

didimcginty

didimcginty

New member
I have two acros. one a plum crazy and the other a green stag, stn on the bottom working its way up, just lost two other corals to rtn in the last two months, i got these two from live aquaria about two months ago, they looked great for about a week or two, and then the problems started, no polyp ext. white mucus coming out but only when i put food in the tank, and now i noticed stn today, just little spots now which is why i think it is stn but i am new to sps so i do not know,i also have another green stag that turned pale(though polyp ext still green) i just changed 1/2 (15lbs) of the miracle mud in my 20 long refugium last wensday, i just shut off my phosban reactor on saturday, i did because the gfo was running about an month and for the last two weeks my phosphates are now at zero. lights are a 6 bulb t5 setup,ati bulbs are 7 months old, two fiji purples come on at 10am off at 8pm, two blue plus come on at 11am off at 7pm, and two aquablues on at 12 off at 6pm,
tank param
nitrate, amonia and nitrite-0
ph-8.2
calcium-460
kh-8.5-9
mag-1350
i have no calcium reactor i manually dose but i feal i keep everthing stabel,
i am trying to very hard to make and sps dominated tank, red planet, blue stag, blue milli, all ora corals and all doing great, had them about two or three weeks now, any help is welcome, any constructive criticisms welcome too, i need help
thank you, sorry if i left info out
 
i dose calcium(when needed),and alk on friday, strontium and potasium iodide(1/2 dose) on saturday, aquavitro fuel (amino acids) on sunday, i ordered zeovit phols xtra and should have it thursday, althought i do not know how i am going to dose
 
If you are only dosing alk one day a week, depending on how much you are dosing, then this may be the candidate.

Also, you probably will not ever need to dose strontium unless you never do water changes at all.
 
i do one 20% water change a month,
would it help if i dip the two corals
any help is apprecitated
thank you dustin b for you responses
i dose what the seachem powder says, 1/2 table spoon per 40 gallons, i have a 100 gallon system, tank fuge and sump
i try not to mess with it during the week so i do not have seasaw effects, that is my reasoning to myself anyway
 
oh and i use seachem reef salt.
is there a better salt that i should look into
i have been thinking about brightwell
 
I would get yourself a good two part calcium and alk. It sounds like your dosing based on the label. You want to dose based on what your tank is using. Check your calcium and alk on day one. The next day test again and see if there is a drop in alk. It wont be as easy to see a drop in calcium. If demand is low you may not see a drop for a few days. Once you see a drop you can determine how much you need to dose to maintain it at that level. Dose the same amount of calcium as you do the alk portion. Sometimes you dont need the same amount depending on what levels your salt mixes up to and how often you do water changes. But you will notice this after a week or so of dosing. Hopefully this is helpfull. May be useless if you are in fact using two part already:crazy1:

Edit: THey may be STNing because your dosing weekly and its swinging. You want to dose daily and using the method above if not already
 
thank you very much for your response, what two part would you recomend
at the moment i dose with sechem powder as i would do a two part, calcium 1st, once i feel calcium is settled(about 5 mins) i dose it with the seachem kh powder. i do as recomended by the label. so now i will do as you say dosing the same amount, thought right now my calcium is not being used much, it was at 500 for about two weeks never lowering, so i was only dosing kh. i am trying to let my calcium come down to 440, so i can balance my tank at 9kh and 440 calcium, does this sound ok?
 
Bulk reef supply is the most economical/most used supply for 2 part. You might want to pick up a dosing pump as well and a digital timer to drive it. You can manually dose the calcium daily if you want to save some cash. The alk part should be dosed very slowly, most people dose it overnight as it will alter the ph of your tank.
 
DustinB said:
Bulk reef supply is the most economical/most used supply for 2 part. You might want to pick up a dosing pump as well and a digital timer to drive it. You can manually dose the calcium daily if you want to save some cash. The alk part should be dosed very slowly, most people dose it overnight as it will alter the ph of your tank.
Click to expand...

Yeah, I use bulk reef supply also, but any should be fine. B ionic is a good one. As Dustin said, it is a good idea to get them on a doser but that is more for convenience and to get greater stability. Dosing by hand is fine especially until you find your proper dose. Using the powders you are currently using is too dificult to keep things steady and is very likely giving you the issues your seeing.
 
Only dose the same amount of alk and calcium with a two part. I dont know for sure that you can do that with the products you are using now.
 
If you want an SPS dominated tank it makes since to either buy a Calcium reactor or a doser. At some point manual dosing is going to be very tedious, not to mention the variation it allows.
 
thank you, i picked up an two part dose today, seachem's i tested and then added, i will test tommarow and go from there, in the process of saving for a dosing pump for alk.
 
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