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  1. Sand Source
  2. alkalinity levels
  3. Sulfur based autotrophic denitratation question
  4. Thank you Randy
  5. Welcome
  6. Brilliant!
  7. chem balance
  8. Measuring organic nutrients
  9. question about liquid water
  10. To Much Calc?
  11. Does artificial salt deteriorate?
  12. Would it help the calcium levels?
  13. Supercharging IO - or atleast getting off to a good start
  14. Oh crap! that's why you've been hangin around our board lately!
  15. R/O-DI water and brass valve
  16. kalk question
  17. Cloudy/foggy water
  18. Crazy claims on H2O purification?
  19. New copper pipes / RO water
  20. Do you think mangroves have the potential to considerably raise calcium levels?
  21. use how much lime?
  22. Halimeda
  23. Standards for test kits
  24. Sodium benzoate
  25. Balance Blocks
  26. Ca Reactor confusion
  27. does copper really bind to glass?
  28. Does suspended sand cause increased SG?
  29. Copper?
  30. Water Study Questions
  31. Cycling Tank
  32. Iodine help
  33. pH and the effect of CO2
  34. why low pH?
  35. cloudy water
  36. Cloudy Water
  37. TECH A-B- coralline algae???
  38. Water & skimmer performance
  39. C02 reaction in Ca rxr: byproduct gas?
  40. Vinegar and Alkalinity: Problem?
  41. Merry Christmas !
  42. alkalinity change
  43. Dissolving Sand
  44. Anaerobic Reactions
  45. nitrates after 3 days of cycling, Normal??
  46. effects of EDTA in the aquarium
  47. Should I buffer top-off water?
  48. Alk/KH So High that Its off the Scale
  49. high calcium
  50. Kalk and alkalinity
  51. Reef Chemistry Links: Magnesium and Phosphate
  52. Reef Chemistry Links: Limewater
  53. Reef Chemistry Links: Carbon Dioxide
  54. Reef Chemistry Links: How tests work
  55. Reef Chemistry Links: CO2/CaCO3 Reactors
  56. Brass Fitting on RO storage tank
  57. what am i doing wrong???
  58. salt ratio
  59. attempting to lower nitrates w/ a DSB worried about chemistry after install
  60. Whats The Best Ro/di Brand
  61. It has to be the water ???
  62. Another oddity
  63. Water Making and Mixing
  64. PH probe
  65. Buffers causing precipitation
  66. Limewater strength
  67. dolomite for sandbeds?
  68. Tropic Marine Alk test kit
  69. Brass float valve arm
  70. Trying to understand alkalinity
  71. Thanks for this forum Randy!
  72. ph in reef
  73. kalkwasser disaster
  74. long term pH depression
  75. Ca/Alk consumption rates
  76. My Refractometer measures only refractive index. Good or Bad
  77. Water from the bay
  78. Spiked Kalkwasser - one more question...
  79. Gelatin binder in frozen fish foods
  80. Source water Alk is very high
  81. Hello Dr
  82. water chemistry
  83. adding calcium to a new tank?...
  84. Low ph......have read all posts but.....
  85. Converting Units of Ca (ppt to mq/l)
  86. calcium test kit
  87. another ph ques.
  88. Measuring pH of DI water
  89. PH swing at night good or bad?
  90. Ca 474ppm,dKH 22.34,pH 8.3,salinity 1.024,temp 76*f.
  91. Why not Ca++
  92. Poly Filter
  93. Potassium Permanganate
  94. Substrate hardening
  95. Specific Gravity Article
  96. ? On drop in pH & Phosphates
  97. Iodine in our tanks
  98. Chemistry of Changeless Systems
  99. alkalinity
  100. Alkalinity fluctuation question
  101. I finally tested my water today.
  102. Kalk addition/method Question
  103. Continuous vs Large water changes
  104. caulerpa and nitrates
  105. electronic measurment of calcium
  106. PH Levels
  107. Taking readings?
  108. Yet another alkalinity question
  109. Can PH cause Bleaching?????
  110. Natural Sea Salt V. Synthetic Sea Salt ??
  111. Nilsen, bucket and CO2
  112. Calcium supplement
  113. Any Plastic Bucket OK?
  114. calcium question
  115. Phosphates
  116. kalwaser precipiation in a reactor?
  117. Kalkwasser question
  118. Omega 3 source
  119. High-end LaMotte test equipment
  120. What brand of salt do you use?
  121. Distillied water and kalk
  122. Ref for a novice limewater user?
  123. Alkalinity / dKH
  124. Would you move Corals to Different tank?
  125. HELP with high calcium??
  126. Natural Juices in Tank water
  127. pH swing and gas exchange question.
  128. Calcium Reactor and PH
  129. too confident + lazy = problems
  130. Would this work ?
  131. Ozone in seawater
  132. Floored After Calibrating pH Probe!
  133. Strontium
  134. shasing numbers? also posted in general forum
  135. Chemicals shelf life
  136. Limewater leading to drifting Ca/alk balance
  137. Can't raise copper concentration in hospital tank
  138. Dosing iodine?
  139. Ozone Controller
  140. water chemistry
  141. Titanium corrosion
  142. Skull in Aquarium?
  143. Alkalinity vs carbonate hardness???
  144. Thorite Cement
  145. Calcium and Alk inbalance =hair algea
  146. New dual reactor
  147. Why does Kalkwasser precipitate only onto my heater?
  148. silica sand
  149. what is too low of a ph?
  150. Calcium reactor pH
  151. Simple explanation of calc, ph, alk relationship
  152. C-Balance and Nano
  153. Trying to increase Ca with Poly Filter
  154. Kicking PO4
  155. Water Chemistry
  156. Effects of using cement to make tank rock.
  157. Alk levels really bad
  158. sand clumping?
  159. Testing for phosphate presence in coquina rock?
  160. Ca/KH relationship
  161. raising ca reactor effluent pH
  162. Bio balls in reef sump
  163. nitrates still high...
  164. ReefBuilder and kalkwaser ?'s.
  165. pH in silica sand bed?
  166. Zones in depth of DEEP sand beds
  167. water hardness
  168. Your water parameters?
  169. Making a Calcium standard solution
  170. Mangroves & Iron supplement
  171. Another Kalk drip question with a twist
  172. High Ph Low Ca Low Dkh
  173. Simple question, but on my mind all the time
  174. Rinsing base rock with tap water
  175. ph question
  176. I hate to admit ignorance, but...
  177. water
  178. Can you recomend RO/DI based on my water?
  179. TDS or Conductivity meter ?
  180. AragaMIGHT! related question...
  181. Liquid calcium Reactor
  182. Organics in Ron's Tank Water Study
  183. High pH with new tank
  184. Water alk too low
  185. is my fish in danger of dieing?
  186. pickling lime
  187. Simple Salifert Question
  188. Testing for silicate.
  189. moving my ph up
  190. Ca reactor up. Where'd coraline go?
  191. Vitamin C
  192. Question about ORP
  193. Limestone Sand
  194. is this suitable for water storage?
  195. Another Kalk ??
  196. SeaTest Hydrometers and Specific Gravity
  197. question about PH
  198. calcium hydroxide
  199. Water chemistry for newbie - KH, Ca, etc.
  200. Newbie chemistry Q's on Ca and KH
  201. Low calcium
  202. Aragamilk
  203. reactor media and ph
  204. Is it possible to have an effluent PH of 6.1 out of your reactor
  205. vinegar and Kalk -> other options?
  206. Oxygen test kit
  207. B Ionic Vs. Limewater Newbie Q
  208. Stoichiometry of Skeletonogenesis
  209. Problem with Calcium Levels
  210. Calcium is suddenly low
  211. Off Gasing CO2
  212. CA and Alk relationship questions
  213. DIY 2 Part Additive?
  214. High Alk
  215. cyano bacteria
  216. Sand (calicium sulfate)
  217. residual ozone destroyed by ultraviolet sterilizer?
  218. Test Kits - All needed?
  219. low pH
  220. Mysterious Fish Deaths
  221. Sand(calcium sulfate)
  222. Sand Bed
  223. Precipitous beginings
  224. Shiny rock found in tank -- What to do?
  225. Reactions to water changes
  226. Free Ammonia vs Total Ammonia
  227. Does anyone use Sea Lab #28?
  228. Adding nitrate
  229. Alkalinity Article
  230. Aquarium safe Silicon
  231. raising pH to keep xenias
  232. Magnet Question
  233. Alkalnity measurements
  234. red sea salt and calcium
  235. Phosguard...bad stuff???
  236. Magnetic Stirrer Question
  237. hydrogen sulfide removal
  238. calcium/alkalinaty and kalk
  239. making pH buffer
  240. Adaption to pH?
  241. Sitting sand
  242. Aiptasia control with NaOH
  243. DI Resins
  244. Is my hydrometer inaccurate?
  245. Randy, What brand of salt do you use?
  246. kalk question:i have done searches
  247. Requesting explanation of thermal reaction of calcium oxide and water
  248. Rising salinity???
  249. Salinity Standards
  250. CO2 and Skimmers