MonsterMinis;4721740; said:I don't... infact my 75 doesn't have tops or lights on it at all.. My fire eels aren't inclined to jump. and since I moved my tire track into a tank with more hide spots and room. He's happy as a clam. My leopard eels attempted to jump the first few weeks and one was seriousely hurt after getting up into the filter. more driftwood and live plants to hide in, no more jumpy.
I always reccomend secure covers for spineys though, If i loose my own fish because of not covering the tank it's one thing. It's other peoples decision on what precautions to make for their own tanks.
PS - A happy eel doesn't try to jump ime.
How can you make that statement and feel like it's accurate? We are taking (almost ALWAYS) wild caught fish (not to mention widely varying species!) that have evolved for thousands of years and putting them in a glass box. How can you define "happy?"
For example, there are almost no reports of spiny eel reproduction in nature, we simply don't know LOTS of things. These eels take years to sexually mature, how can we be sure at some point they aren't looking for needs other than food/shelter? It is often reported large adult specimens will suddenly try to escape tanks they have been fine in for years.
How do we know this also isn't a natural behavior of a survival strategy? Staying in one area of an aquatic environment can lead to depleted food sources, perhaps they instinctually "jump" into other ponds or areas of water in nature? I'm pretty sure these eels aren't "committing suicide" on purpose.