SPS question

[Snappy]

Originally Posted by Ya Dude

also if you dont use Zeo theres no need to test for K
zeoliths are the cause of potassium depletion

I don't disagree that the zeolite depletes potasium but corals do use it and if you don't replenish it you may have problems in a well stocked sps tank. I don't run zeo but still dose with Kbalance daily and I think it makes quite a difference in the overall health of my corals. I also dose iodine, strontium and several other trace elements.
Colin, there are so many variables to what the cause could be, whether it's one thing or a bunch combined it's hard for us to tell here. I would give some hard thought as to what may have changed in your routine, etc. If that isn't the case I would test as many parameters as possible and see where that takes you. How old are the cartridges for your RO and when was the membrane last changed? Also why are you running carbon 24/7? Do you have a lot of softies and LPS in your system? If not the carbon is probably just pulling out some trace elements, etc. If you are skimming heavy I doubt you need the rowaphos unless you're seeing an algae build up. It's not always easy to get the right balance but sps still needs some nutrients to thrive.

[Oceanic]

MY TURN!!




I agree, you don't have to run Zeolites to be low in potasium, any tank can be low in potasium for a number of reasons. The potasium may never get as low as a zeovit tank; however, the levels may still get low enough in combination with another low or missing element causing issues such as tip regression. Iodine is also another idea and is easily fixed. I dose two drops of Lugols every monday and friday to keep some free iodine available for the corals.

I run carbon passivly in a filter sock and works perfectly. Using carbon in a reactor can be too aggressive if run 24/7 with a high flow rate.

Originally Posted by Snappy

I don't disagree that the zeolite depletes potasium but corals do use it and if you don't replenish it you may have problems in a well stocked sps tank. I don't run zeo but still dose with Kbalance daily and I think it makes quite a difference in the overall health of my corals. I also dose iodine, strontium and several other trace elements.
Colin, there are so many variables to what the cause could be, whether it's one thing or a bunch combined it's hard for us to tell here. I would give some hard thought as to what may have changed in your routine, etc. If that isn't the case I would test as many parameters as possible and see where that takes you. How old are the cartridges for your RO and when was the membrane last changed? Also why are you running carbon 24/7? Do you have a lot of softies and LPS in your system? If not the carbon is probably just pulling out some trace elements, etc. If you are skimming heavy I doubt you need the rowaphos unless you're seeing an algae build up. It's not always easy to get the right balance but sps still needs some nutrients to thrive.

[Chin_Lee]

I had problems awhile back when I forgot to dose my iodine weekly. I started again and whenever I dose with iodine i get a good reaction of expansion with my softies. I also use Lugols and I'm too cheap to get an iodine test kit. So I've been dosing 3-4 drops of Lugols every week to 600g of water volume. One tank is heavy LPS and another tank is heavy SPS.
Oceanic - whats your water volume to Lugol drops ratio?

[Oceanic]

I dose 4 drops weekly to 160 gallons, I find this gives me the best results and I also do not test for iodine.

Lugols directions does say to dose 1 drop per 25G per week. This would be 6 drops for me; however, I have just stuck to 4. I also dose 8 drops of Kent Fe (iron) monday and friday.

Originally Posted by Chin_Lee

I had problems awhile back when I forgot to dose my iodine weekly. I started again and whenever I dose with iodine i get a good reaction of expansion with my softies. I also use Lugols and I'm too cheap to get an iodine test kit. So I've been dosing 3-4 drops of Lugols every week to 600g of water volume. One tank is heavy LPS and another tank is heavy SPS.
Oceanic - whats your water volume to Lugol drops ratio?

[Oceanic]

Exactly right on with the iron suggestion!

Originally Posted by Oceanic

I dose 4 drops weekly to 160 gallons, I find this gives me the best results and I also do not test for iodine.

Lugols directions does say to dose 1 drop per 25G per week. This would be 6 drops for me; however, I have just stuck to 4. I also dose 8 drops of Kent Fe (iron) monday and friday.

[niloc16]

wow, lots of awesome info guys thanks. i'll go back to IO. the last time i switched i told myself i wouldnt do it again, well that didnt last long. i gotta go pick up some stuff by the sounds of it.

[niloc16]

i guess salt is liking going to a party. if you stick with one salt everything usually stays happy and healthy, when you change it up disaster is on the edge. well when you go to a party and drink beer only, you are good to go and have a good time, then if you switch to shots or hard liquor then again disaster is just around the corner waiting for you......

[niloc16]

i have NEVER dosed iodine, maybe its something i should look into. my carbon is in a filter sock but all water through the sump is forced through it. actually i have never dosed anything aside from using rowaphos. the only thing that has changed in the last month or so is switching to seachem reef salt. ca and alk was a lot better in this salt over IO. i honestly dont know why i ever leave IO, ive never had problems with it and the 2 times i tried different salts something happens. initially i was getting really good results from the seachem but maybe in the end, this is the problem

[Chin_Lee]

Colin
i woudl consider dosing iodine if you are running carbon all the time. Carbon unfortunately absorbs the good, the bad and the ugly.

[Oceanic]

Are you now using the Seachem Reef Salt?

If so your ALK tests may be inacurate causing your issues. Seachem reef salt has a high borate content giving false result to true alk.

The high borate alk-portion involved with Seachem Reef Salt does not contribute to the bicarbonate & carbonate, which are the main components of alkalinity in our tanks but our alk. test kits read it as such, thus with Seachem Reef Salt, if your test result reads say 9.5 DkH the real, effective alkalinity is in the low 8's. In order to keep the DKH stable with Seachem you need to account for about 1.2-1.3 DKH to borate ALK meaning you need to keep your level about this much higher than with IO salt.

Make sense?

Originally Posted by niloc16

i have NEVER dosed iodine, maybe its something i should look into. my carbon is in a filter sock but all water through the sump is forced through it. actually i have never dosed anything aside from using rowaphos. the only thing that has changed in the last month or so is switching to seachem reef salt. ca and alk was a lot better in this salt over IO. i honestly dont know why i ever leave IO, ive never had problems with it and the 2 times i tried different salts something happens. initially i was getting really good results from the seachem but maybe in the end, this is the problem