2007-10-02 13:36:29 · 6 answers · asked by ? 2 in Pets ➔ Fish
Of course they do, because it's a closed system. The water that is displaced by the fish has no place to go - it remains in the aquarium. But, even if it were an open system where the displaced water would leave the aquarium, they would still add a litte weight, because they do not float on the surface, and therefore are denser (and, hence, weigh more) than the volume of water that they displace.
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2007-10-02 13:43:52 · answer #1 · answered by ? 7 · 2⤊ 0⤋
If you put a fish in the tank and weigh it when its not moving, then weigh it again when the fish is moving, there won't be any difference.
2007-10-02 13:53:02 · answer #2 · answered by Cameron C. 4 · 0⤊ 0⤋
Yes, but most fish only weigh a few ounces. Unless you've got something in there like an arawana.
2007-10-02 13:44:01 · answer #3 · answered by Resident Heretic 7 · 0⤊ 0⤋
Well, they do but it shouldn't make a difference unless you are weighing it by grams!
2007-10-02 13:41:01 · answer #4 · answered by Chris 5 · 0⤊ 0⤋
Yes, but very little, and they are always creating more weight, ya kno, but you suck more out, ya kno, but yes very little, ya kno.
2007-10-02 13:51:42 · answer #5 · answered by Kyle S 4 · 0⤊ 1⤋
yes but don`t worry they don`t weigh much.
2007-10-02 13:47:22 · answer #6 · answered by HaSiCiT Bust A Tie A1 TieBusters 7 · 0⤊ 0⤋