Can't really get around to what really is the key difference(s) between these similar products other than the namebrand and slightly different specs.
- They all seem to contain trace elements. Some more than others.
- They all seem to last quite sometime (1-2 years).
As the title says. Trying to start an Iwagumi style tank, and the stone is absolutely impossible to find up here in Canada.
Willing to buy from the states, looking for enough rock to do a 50gal.
Let me know what you have, and we can work something out.