Testosterone is a hormone produced in the male testes. During a boy's pubescent years (ages 9 to 14), there is an increase in production that leads to male secondary sexual characteristics such as a deeper voice, more muscle mass, facial hair growth and enlargement of the Adam's apple (among others). Some teenage boys experience these puberty changes at later ages than others. The timing of puberty is often genetically determined (through heredity), but other factors can play a role in delaying it, such as poor nutrition, physical trauma and certain diseases. Stimulating testosterone production naturally is possible in teen boys, although in rare cases hormone therapy may be needed to trigger and complete puberty.
Among the many methods of raising the aquarium pH naturally, this one is seen to be the most effective. The coral skeletons and shells are known to have high levels of calcium carbonate compounds in them. You would be happy to know that they can gradually improve the pH levels with ease without putting the fish at risk of anything. You simply need to place a couple of bags filled with crushed corals in the aquarium and let them work the magic. You could still add the crushed corals in the filter so that the water is enriched whenever it is filtered.