The Chemical Balance
Maintaining a freshwater aquarium is less about "feeding fish" and more about managing a complex chemical engine. If you are mixing species based on color rather than their pH Min and dGH Max (General Hardness) tolerances, you are building a stress chamber, not a habitat. A plant that thrives in high light might melt in the shade of a floating fern, while a fish requiring soft water will slowly decline in a hard-water tank. The gap between a thriving ecosystem and a crash often lies in the invisible metrics of water chemistry. You shouldn't be "keeping fish"; you should be curating a biotope.
This template is a digital технічний laboratory for the serious aquarist. It strips away the guesswork of compatibility and forces a rigorous audit of the environmental requirements for every Fish and Plant in your care.
The Species Profile
The strength of this system is its biological depth. It doesn't just track a name; it builds a comprehensive husbandry profile. For plants, you track the Form (Stem, Rosette, Floating) and Propagation method, ensuring you know how to manage growth. For fish, you monitor Temperament (Aggressive vs. Peaceful) and Tank Region preference (Top, Middle, Bottom). This spatial data is critical for stocking density. You can visualize the vertical distribution of your tank inhabitants, preventing overcrowding in the bottom layer while the top remains empty.
The environmental section allows for precise range mapping. By logging the Temperature Min/Max and Lighting needs for every species, you can identify outliers. If you have a plant requiring "High" light in a tank with a "Low" light fish, the database highlights the conflict before you make the purchase.
Population Control: The Tank Census
The ultimate value of this system is the census tracker. It allows you to log the Number of Individuals, split by Males and Females, across multiple tanks (Main Tank, Quarantine, etc.). This is vital for breeding programs and population management. You move from "wondering how many tetras I have" to managing a precise biological inventory. You move from a hobbyist to an aquatic engineer, ensuring that every Common Name and every dKH reading is a data point in a thriving, balanced world.