can aquarium salt increase my fresh water Ph and what are the benefits of aquarium salt and freeze dry bloodworm
Aquarium salt does not affect pH at all. When dissociated in water, salts form equal acid and base amounts with the dissociated ions that form water molecules, having a neutral effect.
Aquarium salt simply helps fish osmoregulate a bit, and it helps them form a healthy slime coat if they have been stressed. Some fish don't like the addition of salt, mainly scaleless species like cory catfish.
Freeze dried bloodworms are useful for varying your fish's diet, which will help keep them healthy. They should not be fed as a staple diet, but rather as a treat. However, they have less nutrient content than frozen bloodworms, so I recommend these over freeze dried.
Aquarium salt would not affect pH.
What it is supposed to do is detoxify ammonia by pushing it toward a different less toxic ionic balance. It could also reduce the energy a fish's cells expend to keep excess water from invading the cell by osmosis. This might be helpful to a fish that is already sick, but would not benefit a healthy fish. The least hardy stages of some freshwater fish parasites might be killed or inactivated by a concentration of salt. You should consider using aquariums alt or iodized table salt in a hospital or quarantine aquarium, but there is no compelling argument for using it in the normal aquarium.
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Aquarium salt does not contain iodine an essential micro-nutrient that is in short supply in our treated tap water. Aquarium salt, or more accurately the grade of salt that is often bought in quantity to relabel as aquarium salt, is allowed to use chemicals like sodium ferrocyanide to prevent salt crystals from clogging. Table salt typically uses powdered dry clay, something entirely harmless and edible. This small amount of clay is so tiny you would not often notice it and it would end up in the filter where as fine particles on the filter media it could trap even smaller particles, making the water clearer than before.
Freeze dried bloodworms don't seem to enthuse the fish's appetite as much as frozen bloodworms. More of the freeze dried ends up lost into the filter or in small spaces in the aquarium where they rot.
Bloodworms are insect larva and insects make up a major part of many fish species diets. It should be good for them. It is just the question of how much "good" has been lost in the preservation methods.
