FISHIOLOGY

To answer the common question: Do we need to put salt into our tank after water change? Salt is present in 97.5% of all water found on earth, and only 2.5% are freshwater. And of the 2.5% of freshwater only 0.3% are found on the surface on Earth that made up of lakes and rivers. Millions of years throughout evolution, there evolved fishes that are adapted to freshwater. Natural freshwater tropical swamp or stream water in the jungle are so pure condition with Nitrate reading's at 0ppm. TDS reading can be as low as 14ppm. For your information Malaysia's tap water TDS reading is around 50-70ppm. Meanwhile African lakes TDS reading can go from 400 - 2500ppm with a PH9 reading. Brackish water TDS reading around 10,000ppm and finally Seawater TDS reads at around 35,000ppm. TDS taken at Trengganu peat swamp TDS = Total Dissolved Solid, PPM = Parts Per Million When we set up an aquarium, the best thing we can offer our fishes is to replicate as close as we possibly can o