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  1. styrofoam toxic?
  2. Different Hardness readings
  3. water chem question/ph
  4. DKH at 7.0 need to raise?
  5. Baking Soda to Raise ALK?
  6. RO Requirements
  7. Xenia & iodine How much is enough
  8. Reef Complete Question
  9. I don't know which to buy
  10. Iodine tincture
  11. hair algea
  12. Percipitation on Lime Water Container
  13. What chemicals do you dose?
  14. Proper dilution of calcium chloride
  15. Tank Upset Help
  16. Unusual Results from Copper Test
  17. Makeup water + vinegar -> black mold??!
  18. What is you right specific gravity (salinity)?
  19. Di ionizining, Chlormines and macro algae
  20. is my ph ok?
  21. Max concentration of SW
  22. How fast should I correct Ca level?
  23. Resistivity vs TDS
  24. Strange PH reading
  25. City Water Quality - Is Mine Good For Reeftank?
  26. Adding Liquid Ca and Buffer
  27. Magnesium
  28. How to keep Dkh and Calcium
  29. should I change the media
  30. And I still have an algae problem
  31. kalk and mag!
  32. Limewater in Nilsen reactor degrades??
  33. Bizarre to me......
  34. Does salinity change at different depths?
  35. Kudos
  36. limewater and B-Ionic question
  37. High Alk
  38. dosing kalk on the timed pump
  39. Another way to dose calcium & trace elements?
  40. Water Quality
  41. Az-n03
  42. Goop and toluene
  43. How much water for Redsea ammonia test
  44. Is it possible to get algae in a Ca Reactor.
  45. Calciumcloride?
  46. What to do...?
  47. Additives to Kalkwasser?
  48. Can't Hold Alk Levels
  49. different form of dosing kalk
  50. Question on kalk
  51. PH buffers
  52. Water
  53. Salefert or Lemotte test kits?
  54. Quandary
  55. Is Kent Tech CB causing my microbubbles?
  56. Why not drink DI H2O?
  57. Copper used in a used tank need help
  58. Cleaning PH probe
  59. Where is it coming from?!!
  60. What is Good Saltwater Chemistry
  61. Salifert sold out: What is a good calcium test?
  62. Low Magnesium
  63. Can't Seem to Hold Alk with Bionic
  64. Is my pH too low?
  65. Equation for salinity loss???
  66. Is my low calcium caused by high alk?
  67. calcium chloride or hydroxide?
  68. New Article on Nitrate
  69. ORP readings too high?
  70. kalk question
  71. Ca/Alk
  72. Total Alkalinity Question
  73. skiming
  74. Kalk spiking question....
  75. hydrogen sulfide
  76. dual stage reactor low ph
  77. Low magnesium
  78. One more ORP question
  79. Good prices on pH meters, etc.
  80. Epoxy question
  81. Low Alk
  82. sodium hypoclorite
  83. water params...Randy some insight please
  84. Metals in IO and CS
  85. Link to the solonoid float switch
  86. PE-1 shaft rusting chemistry
  87. Hi Randy! got two questions for you...
  88. 10,000 Posts!
  89. alk/ calcium question
  90. Acceptable Parameters for Corals??
  91. is it possible?
  92. What is Poly Filter from Poly Bio Marine?
  93. setting up sps tank, need help....
  94. Expanding foam use for backgrounds and such
  95. Crushed Limestone vs. Aragonite
  96. Tropic Marin Bio Calcium
  97. Can I do this to my substrate?
  98. carbon question
  99. Nitrites haven't changed for....
  100. Perhaps its a chem. issue?
  101. Need your bulb info Randy...
  102. Reef Crystals - Lite ?
  103. Co2 Lime water
  104. Hrh
  105. Kalk and tap water
  106. Calcium Too Low
  107. Low pH with CS bio-assay
  108. OK , I give up , need PH help
  109. Affects of low PH on fish and tank
  110. Alkalinity will not stay up. Help!
  111. Simulating a Ca reactor with basic chemistry.
  112. phosphate/Kalk
  113. Pre mixed calcium chloride and Sodium Carbonate
  114. What exactly does my dechlorinator do?
  115. What effects can air bubbles have on my reef ?
  116. Alk and Cal drop even when adding Kalk
  117. Reactor add Mag?
  118. My dKH is at 20.4?!
  119. Can't get that pH up
  120. I need to change something to stabalize PH.
  121. Boron ?
  122. Randy--quick ALK and PH ?
  123. pic of your float switch mounted
  124. Wardley Chlor Out
  125. is softened well water a problem for reefs?
  126. Soft Water
  127. Testing Ca Reactor effluent question.
  128. phosphate in skimmate
  129. Changing from 2-part to calcium reactor
  130. Low density Polystyrene
  131. problems printing your articles
  132. TDS Meter Question
  133. I need good test kits, any suggesstions??
  134. question about flow rate of CA reactor
  135. Malachite Green, is it Copper?
  136. Calcium Reactor Lines??
  137. high pH
  138. Calcium wont come up
  139. Temp?
  140. Boiling off water before testing.
  141. nitrite
  142. Nano in the Kitchen, worried about cooking
  143. pH and gases
  144. salinity
  145. Randy: what happend to your article?
  146. Calcium and Alk too low
  147. Feelings on reef additives
  148. Upper Limit to Calcium Levels
  149. is my kalkwasser saturated?
  150. Using Kalk in a DIY Nurce
  151. IO Salt and Alk/Ca Levels
  152. How much vinegar??
  153. ph issues
  154. PAN Eco-Toxicity Data
  155. Copper and freshwater.
  156. KH Too high...
  157. Is this a good way to dose kallwaser?
  158. What if alkalinity is heigher than average?
  159. Randy, info on the lighting for your chaeto fuge
  160. Randy & Habib; Something new to test Amquel + Plus
  161. brown scum in salt water holding tank
  162. Flourite In Tap Water
  163. Two part aditives
  164. Strontium Test Type?
  165. low ph
  166. What has happend?
  167. Food Coloring ...
  168. Pond Phos-X?
  169. i.o. salt
  170. Ca/ KH?
  171. Reactivating activated carbon
  172. monitor copper levels with antibiotic
  173. Usage of Kalk Reactor
  174. essential elements
  175. maybe a stupid n03 ?
  176. Phospates: How Low Should I Go?
  177. ro additives
  178. Painting
  179. Is there a relationship between ORP and pH?
  180. iodide?
  181. Paint fumes?
  182. Instant Ammonia Test
  183. Magnesium in Reef Crystals mix
  184. dKH 5,4 ,corals never look better
  185. Effects of Panacur
  186. can't raise calcium past 390
  187. Orp staying low even with large changes
  188. Phosphates and silicates
  189. please help! I lost the directions for my salifert calcium tests
  190. need knowledge! please
  191. Coraline algae problems
  192. low calc and alk but high ph
  193. Az No3
  194. Does kalk = raising levels, Cal. & Alk
  195. carbonate buffering
  196. Do I need fish poop?
  197. Nitrate question
  198. O2 Question
  199. Super high Alk
  200. Adjusting Kalk Concentration
  201. Water tem and algae
  202. ph = 10.2, and calcium snow storm
  203. Distilled or Osmos?
  204. Why no 3 part Ca/Alk Additive?
  205. nitrite
  206. Calcium stuck around 310
  207. What should I check for?
  208. question about flow rate of CA reactor
  209. Lowering Alk
  210. test results
  211. Miracle Grow
  212. Alkalinity Problem
  213. ok randy
  214. Low Calcium and readings?
  215. alk idea
  216. Phosban particles in tank, cause for concern?
  217. co2 andskimmer efficency
  218. Calcium Reactor & Refugium
  219. Randy: How is your Dutch?
  220. B-Ionic
  221. Any advice would be great
  222. coralline algae coming off glass
  223. organic phosphates
  224. Randy, am I on the right track with Ca?
  225. Ca & Alk
  226. Phosphate Killer use with macroalgae
  227. Limestone Rock
  228. Kalkwasser setup question for Randy
  229. PH of RO water
  230. Limewater gunk?
  231. Soap question-RO
  232. Why did Alkalinity drop by 6dkh in a day?
  233. why does pH change at night?
  234. Caught in a Pickle.
  235. Test Kit Creation....is it possible
  236. Low pH with IO salt & RO Water
  237. DSB Timebomb?
  238. parameters
  239. Zone 4 correction help
  240. Dosing B-Ionic
  241. Precipitated Calcium Snowstorm.
  242. expiration date on kalk????
  243. Iodine and coral disease
  244. Where does the Cl2 go?
  245. salt mixes
  246. What is EDTA and DOC?
  247. How fast can I add kalkwasser?
  248. Zones????
  249. Problem with high magnesium and snails...
  250. pH problem with DI water