Biomass
Simple definition: Biomass is the total weight of all the fish living in a pond at one time. Detailed Explanation Biomass grows as fish grow, even if you never add another fish. A pond that was lightly stocked at first…
Lokorio
Certified Aquaculture Expert & Founder, Memeilo PondsMoses Lokorio is a certified aquaculture expert with over 6 years of hands-on experience helping fish-pond builders create healthy, balanced pond ecosystems. At Memeilo.com, he writes detailed, data-driven guides to simplify pond construction, maintenance, and fish care for DIYers and professionals alike.
Aeration
Simple definition: Aeration is the process of adding oxygen to pond water, usually by agitating the surface. Detailed Explanation Fish and beneficial bacteria both need dissolved oxygen to survive. Aeration methods include waterfalls, fountains, air stones, and pond pumps that…
Nitrogen Cycle
The nitrogen cycle is the natural process that keeps pond fish alive: a chain of bacteria converting toxic fish waste into progressively safer compounds. Every functioning pond depends on it, and most fish deaths in new ponds trace back to…
Feed Conversion Ratio (FCR)
Feed Conversion Ratio (FCR) answers one specific question: how much feed does it take to produce one unit of fish weight gain? Lower is better. The Formula FCR = total feed weight given ÷ total weight gained. An FCR of…
Stocking Density
Stocking density is how many fish, measured by total weight rather than just headcount, a given pond can support without water quality breaking down, and it’s one of the most commonly misjudged numbers in pond keeping. Why It’s Not Just…
Dissolved Oxygen
Dissolved oxygen is the oxygen actually present in pond water, the only form fish can use to breathe through their gills, and it can drop to dangerous levels faster than almost any other water quality problem. How Oxygen Enters Pond…
Biofilter
A biofilter is where the actual chemistry of a healthy pond happens: the surface area where beneficial bacteria colonize and convert deadly fish waste into something far safer, quietly, continuously, without a pond owner having to do anything once it’s…
Ammonia
Ammonia is the first and most dangerous compound in the pond nitrogen cycle, a waste product released by fish through their gills and in their waste that turns toxic long before it becomes visible. Understanding ammonia, where it comes from…
7 Pro Tips to determine the Right Pond Liner Size & Thickness
Getting the right pond liner size and thickness is one of the smartest choices you can make for your pond. A liner that fits well keeps your pond strong, clean, and leak-free for years. If your liner is too small, it can: If…
How to Feed Fish on Vacation Without Worry (2025 Guide)
When I took my first weekend getaway, I thought feeding my fish a little extra before leaving would be enough. But when I got home, the pond was cloudy, and my fish looked dull and tired. That experience taught me…