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  1. Need Advice.
  2. Fun with Chemistry
  3. if you could suggest one...
  4. Help!! Alk too low and Calcium through the roof
  5. -
  6. B-Ionic vs C Balance
  7. cleaning PH probe
  8. Just tested my water...HELP!
  9. nitrate
  10. photosynthesis your opinion wanted!
  11. extremely efficient nitrogen removal via ANAMMOX cells
  12. DIY Chemical Test Kits
  13. instructions please
  14. Hanna tester giving weird values for Ammonia
  15. iodine test kits worthless ?
  16. Iodine & Iodide? Same Thing?
  17. Calcium Hydroxide. Mrs Wages or lab grade
  18. How much vodka to dose?
  19. Dosing Calc
  20. what test kits do I need for a reef?
  21. Is this normal?
  22. calcium level wont raise?
  23. What calcium/ph/alkalinity buffer should I use??
  24. I was told to ask for Randy.
  25. calcium low help.
  26. HELP SG reading off the chart
  27. Voltage problem in tank - need help??
  28. Removing bioball - chemestry impact question
  29. How do I convert these?
  30. need link can't find
  31. high alkalinity
  32. Cal/Alk precipitation issue
  33. k-balance
  34. Ca & dkH w/ Nilsen reactor
  35. AZ-no3
  36. False 0.25 ammonia reading?
  37. Strips versus liquid tests
  38. Stablize PH
  39. "Right Now" Bacteria and Aerobic Nitrate reduction
  40. Help with Alk please...
  41. Should my pH be rising?
  42. Can mineral water used in reef tanks?
  43. Help me understand
  44. Raising Ph?
  45. hydrogen peroxide
  46. Basic additives to coral reef tank
  47. "kent" nitrate reducer
  48. is it possable that moonlights keep ph up?
  49. Bio Balls / Nitrates
  50. Bio Balls / Nitrates
  51. Bio Balls / Nitrates
  52. Bio Balls / Nitrates
  53. Lab grade probes?
  54. Low Alk/Low Ca/high pH an issue I'm sure Randy is sick of answering
  55. OH! I cannot raise my reef pH!!
  56. Randy and all that want to learn Chemistry
  57. Limewater for PH
  58. Phosphate test kit accuracy
  59. Kalk on a timer question?
  60. Kent BioMarine Sediment
  61. Alll the additives whats up?
  62. Instant Ocean Sea Salt
  63. DIY ozone reactor?
  64. IV BAG for a Limewater dripper
  65. Calcium Acetate
  66. what I would need to do to make this sand safe to use.
  67. Alk at 4.45 meq and I dont know why
  68. BIG Help Needed. Total disaster.
  69. my journal dose sugar
  70. Is there any way to determine what elements may be in the bagged play sands?
  71. The use of ozonisers?
  72. Dendronephthya carbohydrase determination
  73. Question About PhosGuard
  74. Help raising Calcium and Alk
  75. Raising Magnesium Levels,keeping stable salt levels.
  76. What brand of strontium do you use?
  77. phosex and the kent phosphate remover?
  78. alk question.
  79. kalk and mag
  80. bleach
  81. Reducing Calcium without Ak Swings?
  82. Refugiums, CO2, calcium reactors
  83. help me randy....
  84. Low Alkalinity in make-up water
  85. Intermittent use of RowaPhos
  86. Flourish Iron for my Macroalgae?
  87. Phosban Reactor w/carbon
  88. Running phosban reactor without measuring levels
  89. New Tank With "Right Now" bacteria
  90. Kh
  91. pesticide dip (MG clhoride)
  92. Magnesium Level too low
  93. question about artificial reef decorations
  94. sea lab calcium
  95. Best Salt to Use
  96. moving 125gal into new 375gal
  97. Macroalgae sustained on Nitrate alone in regards to using Phos reactor
  98. Alk dosing question
  99. question about dosing sugar
  100. Best Salt to Use
  101. Hig Calcium and High Magnesium
  102. Digital Nitrate Tester-There coming!
  103. Why does Randy's recipe fizz?
  104. Can't wrap head around ca/alk/mg
  105. Easy Magnesium test kit?
  106. Cloudy Tank Water
  107. GFO's and Alkalinity
  108. Where does the Cl go when dosing CaCl?
  109. somthing interesting
  110. O2 Monitoring
  111. magnesium chloride hexahydrate?
  112. Is this possible??
  113. Magnesium Media In CA Reactor
  114. Recomended RO/DI units?
  115. reef care
  116. Anenome's color is it an issue?
  117. hydrometers.
  118. Protein in the diet
  119. Can topping off tank with H20 injure fish?
  120. dKH Question
  121. Help! Sera Test-Kit Parts Needed!!!
  122. Fire & Safety
  123. pH Spike! Help!
  124. Dosing Kalk + Vinegar for increasing Calcium?
  125. Alkalinity monitor - why not?
  126. ph
  127. pH vs. Kalk Drip Question for Randy
  128. I have a Phosphate problem
  129. Iron?
  130. Cyano problem - 0 nitrate & 0 phosphate??
  131. Can I finish off B part
  132. Mixing kalk and baking soda
  133. Is dosing mag weekly unusual?
  134. PPM calculation?
  135. Confused about dKH (hardness vs alkalinity)
  136. Potasium Permanganate for cleaning
  137. cheato
  138. calcium reactor not meeting cal demand?
  139. Advise on stailess steel
  140. Q for Randy
  141. Calc drop, Alk and Mag ok.
  142. Alk revisted..
  143. Dissolving magnesium chloride
  144. new tank old LR
  145. Randy please help
  146. Dosing Pumps
  147. Magnesium, topoff water, and kalk reactor.
  148. What do I do with the risidual Kalk at the bottom?
  149. i tested my kh wrong...help! immediatly
  150. calcifications rates
  151. Brand of salt related to PH problems?
  152. Alkalinity and Calcium Usage
  153. Is this true?
  154. testing for calcium levels
  155. Alk/Calcium Problem
  156. pH swings
  157. Which phosphate kit to get?
  158. RO pH
  159. Need help with Randy's 2 parts.
  160. activated carbon
  161. Calcium Acetate?
  162. How to keep Livesand alive for 3 weeks?
  163. Cycling water from the ocean
  164. alkalinity
  165. LR sitting in a closed bucket of SW 3 weeks = ??
  166. dendronephthya/carbohydrase/nucleic acids
  167. ozone
  168. mag flake vs. mag pellet
  169. OOOppps!!! I just overdosed Kalk
  170. Precipitate
  171. kalkwasser
  172. Water Params outta kilter.....
  173. Help - Calcium extremely high
  174. aHHH!!! darn salt!
  175. High Calcium readings
  176. Skimmer not producing bubbles, need help!
  177. Salifert Calcium Test Help
  178. Briners Grade Calcium Chloride
  179. MAG Flake Manufacturer Claims about Suitability
  180. sulphur reactors
  181. Coral line algae
  182. What Do You Think About This
  183. Copper removal products
  184. pH Question
  185. Why Purple Up does work???
  186. What time to dose Kalk?
  187. cal reactor vs just kalk
  188. DIY Additives
  189. how do i bring down my carbonate hardness?
  190. Tropic Marin Salt not silicate free!!!
  191. lowering alkalinity?
  192. recommended test kits
  193. Benefit of Kalk
  194. LR contaminated?
  195. Sodium Carbonate Additions For pH????
  196. A suggestion to those that dose carbon.
  197. zeolite in reef tank
  198. Optimal use of calcium reactor
  199. anyone out there try there product ?
  200. Dupont calcium hardness increaser
  201. I made a BIG mistake
  202. sand clumping...
  203. printing
  204. Alkalinity not stable
  205. 2 water movement questions
  206. Fix ALK or CA first?
  207. Dosing Randy's 2 part
  208. Chemical Reference Standards for Testing Test Kits
  209. questions
  210. kalk storm
  211. It snowed in my sump?
  212. How much Randy's 2 part at one time
  213. ozonisers/redox and orp.
  214. Refugium Question
  215. phosphate in rainwater?
  216. silica removal ?
  217. Do you have to use a Kalk reactor?
  218. Why can't I figure this out???
  219. Auto top off-Which one?
  220. How toxic are boxfish??
  221. curious...
  222. carbonate hardness to alk conversion
  223. New genera of light-Sulphur lighting
  224. False Reading Salifert Ca Test
  225. really odd water parameters, something that I didnt even think possible
  226. another question Randy...sorry!
  227. Very low ph-6.32
  228. Aptasia problem
  229. Is this common?
  230. How fast can I raise Alk?
  231. Zeolites and diatom growth
  232. very diluted kalkwasser: Can I add it rapidly to my tank?
  233. What are common Reef tank chemical levels?
  234. Going on vacation. Need easy way to maintain cal/alk
  235. Calcium Chloride Search
  236. which photometers let you test saltwater
  237. Weird PH fluxuation?
  238. My feather caulerpa stopped growing and hair algae is everywhere
  239. Vinegar to limewater?
  240. my water is pee yellow!
  241. Lime water magnesium help
  242. Warning about Ocean Pure Pro Salt!
  243. Amount of Kalk to smother Aiptasia
  244. 2 Questions for Randy about the improved 2 part
  245. would iron filings work as an additive
  246. What is your drinking waters PPM
  247. Kalk to use or not?
  248. Fish ready?
  249. Kalk question??
  250. does a uv sterilizer kill necessary organisms in a reef?