The ethics of rimless tanks and fish jumping
Not trying to start a war but fish jump. Almost all species can jump out of a glass box. I can't count how many posts I've read where a hobbyist state that this or that fish jumped out of the tank and died as if that is some sort of surprise or could not be contemplated. It should not surprise anyone.
Put a lid on it. Your tank looking cool should not trump avoidable fish deaths |
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A lot of these fish are pulled from their wide open ocean environments to live in our tanks. Its our responsibility to care for them in the best way we can. |
Rimless are pretty, but I cover my tanks for both fish protection purposes and it dramatically reduces evaporation. It reduces light a bit, but I have to dial down my LED's anyways. With a larger tank auto topoffs negate the evaporation issue, but it gets less practical with smaller tanks.
Again, I love the look of rimless tanks, but I know a lot of rimless owners that as soon as company leaves and they are done impressing a cover goes over the tank. |
New to the hobby. A rimless tank with a well made screen top is still better looking and more practical than a hood or cover. IMO there's no excuse for not having one for livestock safety.
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99% of the fish sold in all pet stores are doomed, so an open tank owner is generally a better gamble then joe idiot buying a 6 line wrasse which you know will jump.
I think most open tank owners know better, but man it does suck when a fish you have had for 10 years decides to fly. Best thing I ever did was cover my overflows with plexi cut to fit. |
I personally have a RSR150 and love how it looks, but also care too much about losing my beloved fish that I purchased an artfully acrylic lid. Not super cheap, but doesn't take too much away from looks.
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Yep.
Cover 'em up folks! |
Honestly I've run open-top for over a decade, and the only time I ever had jumpers was in my first years of reefing. And I stopped having jumpers after I eliminated sources of aggression and introduced moonlight so the tank was never in "pitch black" darkness.
That said I do keep a lid on the tank of my 6-line i got a month ago, as a precaution, though i've yet to see any jumping tendencies from him. |
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I did this in order to prevent water spilling with an earthquake but I´ve seen a wrasse of mine jumping out of the tank and this rim prevent him from going down the tank.
HTH |
thats an interesting take on a cover. and How does one earth quake proof a tank?
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An acrylic framed top is hardly noticeable.
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If one takes a moment to consider the deplorable survival rates of fish collected for our hobby, worrying specifically about the ethics of an open top tak seems akin to the old saying about closing the barn door after the horses have already bolted.
FWIW, I do have screen tops on all of my tanks (including the trim less ones) except the frag tank. Haven't had a frag jump yet fortunately. |
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Once the fish is in our care, it is our responsibility to do all we can to ensure not only their survival but their well being in general. In fact, I would say that if it is in fact true that survival rate from capture to purchase is so dismal, we should go the extra mile to ensure that the fish that do survive continue to do so. |
I have glass tops on my tank, and left a 1/2" gap in the front to facilitate easier feedings...
Came home to a dried up Diamond Watchman Goby. :/ |
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The edges are definitely the most important parts to be covered. A lot of fish shoot straight up along the walls of the tank and out along the edge. I lost a radial file Fish even with one of the BRS mesh lids because there was still a 3/16 gap between the frame of the lid and the glass due to the plastic pieces that hold the lid. It somehow managed to get through the gap and land on top of the mesh part to be quickly cooked by the LEDs |
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