chemistry

  1. ncfalco

    When is phytoplankton ready for harvest after overdosing F2 fertilizer?

    I am currently attempting to culture live phytoplankton for the first time using Algae Barn Ocean Magik live phyto as a a starter culture and Gillards F2 as a fertilizer. In hindsight I should have started with a single strain, but this is my experiment nonetheless. The culture has been going...
  2. P

    Tank turning 1 yr. old! What next?

    Hello! I’ve been in the saltwater hobby for about a year. I thoroughly enjoy this experience and I want to continue advancing in the hobby. Like many of us, my primary goal is to achieve a thriving mixed reef system. Now that my first reef tank is about one year old, I’ve reached a point where...
  3. Smallslandreefer

    Icp result opinions

    Hey guys this is my icp results. Anything to concerning? Do you have any experience with any element on my ipc that my cause issues at the value i have them?
  4. V

    Continued Ph issues after many adjustments

    Hey all, so this has been like a 6 month struggle for me, I had a crash in December cuz of a lapse in judgement and been slowly battling my way back. So here's where I am, I was battling really low ph, like 7.6 as a high in my tank in december, ended up grabbing a second probe for redundancy...
  5. cwerner

    Phosphate swings throughout the day?

    Hello, I'm trying to troubleshoot some interesting Hanna ULR Phosphate Checker readings that I've been receiving the past few days. Do Phosphate levels in reef tanks have 'Cycles' or level changes throughout the day? The reason I ask is because I'm doing carbon dosing in my reef tank and I've...
  6. K

    Hanna Nitrate HR Reagent INTO Tank

    At the end of the 2 min mixing step for the Hanna Nitrate HR test as I was cleaning the vial, I dropped the vial and by some clumsy miracle, the vial broke and the entire contents (and broken vial) ended up in my sump. The reagent packet says Malonic acid, and I assume there is also some kind...
  7. Bohemian Waxwing

    Is there a dummy's guide to how hydrogen peroxide helps with nuisance algae?

    I used it recently to help fight back against cyano, and I see it being used quite often to help with algae. How does it work? Why does it kill the bad stuff, but the tank seems to be perfectly fine? Why is the good bacteria spared? How is it affecting the inverts? Does it accumulate and need...
  8. Mattc123

    Testing Package Deal Dry Goods SOLD Hanna checkers

    I have 5 Hanna checkers for sale. A phosphate ULR, Nitrate LR, pH, alkalinity, and calcium. All are lightly used and in good shape. All have reagant except for the nitrate tester which is out of liquid reagent after the bottle leaked. Looking to sell them as a package or separately. Dm me for...
  9. StubbyAcro

    DIY trace solutions - How dilute is too dilute? When should I remake the solutions?

    Hello @Randy Holmes-Farley. You mentioned in a few threads that the less concentrated a solution is, the less stable it is due to air oxidation. I understand that the rate of air oxidation is different for different elements but I don't know how long will my DIY trace solutions last in...
  10. RdawgsReefs

    Spawning/reproduction

    I'm very new to this so this is very far off for me but to me this is the epitome of coral husbandry so everything leads to it. Its the reason I got into the hobby. From what I know, getting coral to spawn/reproduce instead of fragging is few and far between. Ive only personally read about it...
  11. Lex_510

    How to lower Phosphate??

    I have a 75gallon tank set up for about 2 years. sump has live rock, and so does the tank. Nyos120 skimmer tht only skims less than 1/2 the cup like every 10 days before I clean cup. growing Cheato. Using filter floss I clean every week or so. Refugium light is on for 8hrs and use Rodi water...
  12. The Ways Alkalinity can Accumulate in a Reef Tank

    The Ways Alkalinity can Accumulate in a Reef Tank

    The Ways Alkalinity can Accumulate in a Reef Tank @Miami Reef “Why is my alkalinity rising?” It’s a question that pops up over and over again in the Reef2Reef chemistry forum, and while it sounds simple, the answer often isn’t. Alkalinity can increase for a variety of reasons, many of which...
  13. kwirky

    Does potassium nitrate and potassium phosphate react?

    I currently dose 1mg kno3 and 0.04mg kpho3 weekly but since it's weekly i often forget to do it, sometimes a couple weeks in a row with visible degradation to acro health, so i want to automatically dose it. I only have one channel free on my kamoer dosing pump. Can i mix potassium nitrate and...
  14. R

    Reef chemistry causeing issues possibly?

    I was doing tests on my tank and it came back with my alk at 17dkh and my calcium was 500 all my others are normal with ammonia and nitrate at 0 and nitrite at 10 Im not really sure what to do i have been dosing reef carbonate to my tank twice a week to boost growth of the corals i have and i...
  15. ldreefer

    Calcium and ALK levels - are mine ok?

    I’ve been in the reef game for a long time, but took a break for a while and just recently got started again. This time around I’m trying to make sure I really stay on top of water parameters, so I’ve been testing regularly. I started this time with a used tank from my dad, a Red Sea 350 and re...
  16. kwirky

    Add phosphate with doser then remove it with gfo reactor on timer?

    Is it possible to dose phosphate during the optimal period of the daily photo cycle, based on the best time corals are known to absorb phosphate from the water? Then to keep it from climbing, and reduce the time spent monitoring, remove the phosphate daily, with a GFO reactor on a timer, running...
  17. Herpdederp

    NO3 and PO4 chemistry

    I have a question about NO3 and PO4 chemistry. Usually when PO4 drops NO3 would drop with it right? I've been having problems keeping PO4 up, so far I removed pellet reactor and disconnected the refugium. But as soon as I turn the fuge back on the PO4 drops too fast, is it possible that the...
  18. reefsaver

    Is Anyone's Hanna Magnesium Checker Not Reading High?

    I've heard about the problem of Hanna's Magnesium colorimeter reading high and recently learned that you can fill out a form on the Hanna website to get them to send out a new Reagent to correct the issue. But has anyone not had to do this and is getting similar results to other tests they do? I...
  19. B

    Why are magnets bad for reef chemistry ?

    Why are magnets bad for the reef tank? I have read many threads where individuals blame magnets for all kinds of misery. I am getting ready to make some magnetic accessories for my tank but I want to be prepared for my consequences if I fail to adequately protect them from poisoning my tank...
  20. chemicals

    dKH pretty low, calcium and magnesium normal

    Hi, Today did some testing and I found that my alkalinity is pretty low. dKH: ~6 Ca: 470 Mg: 1440 Salinity: 1.025 pH: ~8 Nitrate: ~6 Ammonia and nitrite: 0 These testing results are 1 week after a water change. I use Tropic Marin Pro salt and a new batch of water has around 7,2 dKH. Should I...
  21. O

    Dino-X and Neonitro

    Hey guys once again battling algae… started dinox last night and it says not to add trace elements and no products that absorb. My tank is ultra low nutrient and I want to add Neonitro to help battle the Dino’s. Can I do both at the same time?
  22. Iant419

    Dosing iodine to freshwater and testing with Hannah iodine checker. Possible?

    So I accidentally bought the Hannah iodine tester for freshwater and have been wondering how I could safely dose to the reef tank without an ICP test. I was thinking I could add iodine to an ATO or mix it in my freshwater and then test prior to adding salt to achieve .06 iodine levels. I'm not...
  23. Iggy305

    Nitrates & Phosphates

    Happy Holidays Fellow Reefers, Here’s the skinny… I have a Coral/Invert QT with a few frags in it, nothing flashy, couple of smallish rocks, frags, and some snails. Nitrate & Phosphate are consistently reading 0, everything seems happy, save a temperamental Kenya, but otherwise good. My...
  24. C

    Got my ATI results back and need help with a game plan.

    I just got my results back. I took my sample the same week that I started a chaeto reactor so know my nitrates and phosphates will come down, but am concerned that my nitrates are 135x my phosphates instead of about 10x like I see being ideal. I’m thinking of starting to dose NoPox but am unsure...
  25. conlan75

    Alk creeping with auto water changes

    alright - I'm stumped on this. Tank is 3 months old, PH is between 8.1-8.2, Salt is at 33, MG is 1240, Calcium is 480 and Alk keeps creeping from 11 into the 12's. It got as high as 14, with Ca and Mg relatively the same. If I do a 30% water change, Alk drops some, I was able to drop it from the...
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