carbonate hardness

  1. G

    Dependence of nutrition on water hardness

    Hi! Are there any relationships between Ca or HCO3 and N,P, micro ferts? I mean if I have 5 dKh and 5 gH need I dose more then if I would have 1dKh and 5gh? At the same time in both cases pH is stable and around 6,7. Thanks a lot!
  2. S

    Water parameters on the plant. Ammonia, carbonate hardness, heavy metals

    Hello friends I am an aquatic plant grower (out of water) I use DIY substrates in the aquarium. Peat moss / mineral pumice and silica sand and slow release fertilizers The growth was excellent in the first week. But after 50% change in water, the plants are severely damaged. Scratching of leaves...
  3. T.Smith

    New Here!

    hey I’m new to Barr report just saying hi. Thought I would ask a quick question to anyone that might have an answer. Does anyone use nilocg reKHarb in RO/DI for kh? And also is this provide a true KH?
  4. B

    Kh and carbonate hardness

    Hi. I was having some BBA that I couldn't get rid of. After increasing micros dosing I saw some improvement on eleocharis but then BBA started expanding. So then I thought it could be a CO2 problem afterall. :) I have a cheap PH controller that seems to be doing a good job, calibrated with...
  5. T

    Calcium Carbonate vs Calcium Sulfate

    I recently switched to using an RO system due to severe inconsistencies in my tap water quality. I've been using GLA Ultimate GH booster. My assumption was the calcium would also raise kh, however it's calcium sulfate. Is there a significant difference between calcium sulfate and calcium...