Leaving shrimp while you travel

The short answer

Shrimp are natural grazers. They pick at biofilm, algae and decaying plant matter all day, so a tank that has been running for a while keeps feeding them between meals. The bigger risk while you are away is not hunger but a problem nobody notices, such as a stopped filter, a heater fault or too much uneaten food.

Before you go

Start a few days ahead rather than the night before. Check that the filter is running and the sponge is clean enough to keep flow steady, and that the heater, if you use one, holds a steady temperature. If a water change is due, do a small one a few days before you leave and keep it modest, as described in water changes. Avoid big changes, new plants or new shrimp right before a trip, since you will not be there to see how the tank reacts.

Put the light on a timer so the day and night cycle stays regular. Feed normally on the day you leave, lightly, and remove anything left uneaten after a few hours. More on amounts is in feeding shrimp.

What to skip

Do not dump in extra food to be safe. In a small tank, leftovers decay and can foul the water, which hurts shrimp far more than a few skipped meals. We would also avoid slow-release vacation feeder blocks and avoid adding any medication or treatment before leaving, especially anything that might contain copper, see medications and copper.

When to ask for help

Younger tanks, tanks that are still cycling, colonies with lots of baby shrimp and sensitive Caridina setups are less forgiving. For these, ask a friend to look in every few days. Give them a short written note: check the filter is running, look for dead shrimp, and do not feed unless you say so. Heavy-handed extra feeding by a well-meaning helper is one of the more common ways a tank goes wrong, and it can contribute to the problems in why shrimp die.

When you get back

Look the tank over before you do anything. Count what you can see, check the equipment, and remove any dead shrimp. If the water looks fine, resume normal feeding and do a normal small water change. If anything looks off, test the water before changing it.

Questions we get asked

Can I leave shrimp alone for a week?

Usually yes for an established, healthy tank with adult shrimp. They graze on biofilm and algae and can go several days without being fed. Prepare the tank beforehand and do not make big changes right before you leave.

Do I need to feed shrimp while I am away?

Not for a short trip with adult shrimp in an established, planted tank. A normal feeding the day you leave is enough for most. Skip extra food, because uneaten food fouls the water far more easily than a missed meal causes harm.

Should I use a vacation feeder block?

We would avoid them in a shrimp tank. Slow-release blocks can cloud or foul the water and are hard to judge in a small volume. Leaving the tank lightly fed, or asking someone to check in, is the safer choice.

What about shrimplets and new tanks?

Baby shrimp and tanks that are still new or cycling depend on a steady supply of biofilm and stable water, so they are less forgiving. If the tank is young, ask someone to look in or postpone the trip if you can.

Who should check on the tank?

Ask someone to look for dead shrimp, a stopped filter or a heater problem, and to leave the feeding alone unless you tell them otherwise. Written instructions help, since helpful extra food is a common cause of trouble.

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