Fish farming: tilapia, trout and cachama

What the app keeps for your farm

In fish farming you do not keep fish one by one, but you can keep each pond. A pond becomes a group counted by quantity: the fingerlings you stock are its starting count, and each death, sale or adjustment you record changes the running total. Fish in a quantity group do not count toward the free plan’s limit of 50 animals; the pond does count toward its 2 groups. It works for tilapia, trout, cachama or any other fish you grow out.

• Harvest in kilos. The quick log takes the kilos of meat from each harvest, full or partial, in a few seconds, for the whole farm or for one pond. On the free plan you see the farm’s total for today and the last 7 days; monthly and three-month totals are on the Pro plan.
• Costs. The fingerlings for stocking, the bags of feed, lime, pumping and labour are recorded as expenses, with a category and a description, and assigned to the whole farm or to the pond they belong to. Each month you see what comes in, what goes out and the trend over the last six months.
• Sales. Every fish sale is recorded as income, for the farm or for a pond. A sale recorded in the pond’s group can carry the amount, and it is booked as that pond’s income.
• Reminders. A weight sample, a water change or the harvest date, each with its own date and a notification on your phone. They can repeat every so many days, weeks or months: when you mark one done, the app sets the next.

On the free plan you have up to 2 groups and 10 reminders, and assigning kilos and money to a pond is free. The Pro plan removes those limits, shows each pond’s balance and adds monthly and three-month production totals.

Feed is almost the whole cost

On most fish farms compound feed is the biggest cost of the cycle. If you record every feed purchase and the fingerlings as costs, and then the kilos you harvest, when you close the cycle you have the real cost per kilo. That way you compare one stocking with the next and see whether the feed is turning into fish. If each pond is a group and you assign its costs and kilos to it, you compare ponds too: on the Pro plan each pond’s record shows what it spent and what it brought in.

What the app does not measure

The app does not keep dissolved oxygen, pH, temperature or ammonia of the water, and it has no calculator for fish. If you measure the water, create a reminder for the next reading, but you note the values elsewhere. What it does count is the fish in each pond kept as a quantity group: record the deaths and the running total goes down.