Situation guide
Quarantine, drip acclimation and stocking-order tactics.
Fish have no nails and nothing that needs trimming. The handling task that really causes bleeding is catching and moving a fish. This guide covers container capture, soft nets, protecting the slime coat, and the infections that show up days after a rough transfer.
A dead fish is a load on a closed system as well as a loss: decomposition consumes oxygen and releases ammonia into the water the survivors are breathing. Learn the order of the first hour, which findings on the body are real and which happen to every fish after death, how the pattern of deaths separates an oxygen cras
A fish cannot be dehydrated and cannot be encouraged to drink. What it does manage constantly is the flow of water and salts across its gills. This guide explains hardness, buffering, and why choosing species that suit your tap water beats chemical adjustment.
Pet fish are not vaccinated, so quarantine is the preventive milestone that replaces it. This guide covers how to set up a quarantine tank, what normal arrival stress looks like, what to watch for week by week, and why blanket medicating a healthy new fish is the wrong default.
Fish are not dewormed on a mammalian calendar, and blanket dosing a healthy tank does harm. Real prevention is quarantining every new fish, plant and snail, keeping tanks biologically separate, and keeping fish healthy enough to resist.
Aquarium salt does three things: it protects against nitrite at the gill, it reduces the osmotic work a damaged fish does, and it kills the free-swimming stages of some external parasites. It does not treat internal infection, internal parasites, dropsy or buoyancy problems. Two facts decide whether it helps or harms:
Zoning for fish happens inside a single tank, where every occupant shares the same water and territory. This guide covers compatibility by temperament, adult size and water needs, breaking sight lines, shoal sizes, and spotting chronic harassment before it kills.
Fish have no socialisation window. Their social needs are set by species. Learn which fish need a group, why aggression usually appears at maturity, and how to quarantine and introduce new tankmates without importing disease.
Fish do not feel jealousy, but they do react to a new fish in their water. Adding a fish is the most common way disease enters a healthy tank. This guide covers quarantine, acclimatisation, evening introductions and resetting territories.
Adding fish to a brand-new aquarium too quickly is the leading cause of early fish loss. Learn how the nitrogen cycle works, why ammonia is highly toxic, and how to safely cycle your tank using fishless or fish-in methods to keep your new aquatic pets alive and healthy.
Almost any fish will eat baby shrimp, and many will hunt adults too. If you want a shrimp colony to thrive alongside fish, the choice of tank mates is everything. This comparison covers the safest species, the ones to avoid, and how heavy planting changes the odds.
A peaceful community tank is not luck , it is planning. This guide explains how to match temperament, size, water needs and swimming level, why schooling fish must be kept in groups, and the classic pairings that cause fin-nipping, bullying and stress so you can avoid them.
Overstocking is the most common beginner mistake and the fastest route to disease and death. This guide explains why the old inch-per-gallon rule fails, how to think about bioload, swimming space and adult size, and how to stock a tank gradually so your filter can keep up.
A quarantine tank is the single cheapest insurance against wiping out your whole aquarium. It isolates new fish so hidden diseases surface before they reach your main tank. Here is why it matters, exactly what you need, and how to run a proper four-week quarantine.
New fish arrive stressed and in water that may differ sharply from your tank. Acclimating them slowly prevents shock and saves lives. This guide explains the float and drip methods step by step, why not to pour in bag water, and the quarantine habit that protects your whole tank.
