- 21 Jun 2009
ceg4048 said:I guess it's also not clear why the short term KH transient is such an issue?
Because of the associated PH drop that is quite sharp ( i deduce especially if injecting co2 ) given James had to do daily water changes. Im not sure how low the PH can go as a result but perhaps plants wont like the very low PH. Besides i have filters cycling at the moment getting ready so i would also pop in some fish too.
At the moment i can conclude in respect to the original question that there is no major benefit to purchasing the guru branded substrata and that Sand will suffice but James does have some evidence ( crypts i think ) that Akadama can give better results and will produce clearer water as an added bonus. This is in line with the Barr report. Any concerns that one might have towards root uptake may be addressed by Osmocote and a little peat under the akadama. Its been a useful thought process to me to understand that in not paying for the guru substrata im not actually limiting the systems performance in any way. The local shop has a lot of different bonzai stuff , I am going to try and get my hands on samples of other stuff the bonzai people use to see if i can also address the asthethic issue some of it had a very " mixed " colour look ,, like different colour pebbles etc . I will post my findings , maybe i will try a nano tank with something else also