While there is substantial information on the internet about so-called ‘Dirted Tanks’, much of it revolves around the soil sold as, Miracle Grow Organic Potting Mix. This is largely due to this specific soil being widely available and relatively uniform in composition world-wide. As a result, there has been very little experimentation with commercially available well-known brands by aquarium hobbyists. So, it was with this in mind that I decided to purchase a bag of Scott’s Pure Organic Potting Mix to set-up a new ‘dirted tank’. This soil was almost the only soil that seemed to be relatively aquarium friendly. All the other brands available locally contained fertilisers, wetting agents and all manner of ‘fish killing substances’. The only concern that I had when purchasing this soil was an ingredient listed as ‘bio-stimulants’ on the packaging. Bio-stimulants is a generic name for a range of living organisms that are commonly found in soils. Several companies add these organisms to their products to improve fertility.
Despite my best efforts to purchase a suitable soil, the set-up never happened because the soil was almost entirely bark and completely unusable for an aquarium. It took several weeks before I found a suitable soil for the project but that is for another article… (See: How to: Setting Up a ‘Dirted Tank’)