Benedict
Posted : 2/21/2007 11:19:28 AM
Ugh, I just typed out this whole long response and couldn't post it because the thread was moved while I was typing.
Anyway.....
I don't think fish are easy to keep. At least, I don't think fish are easy to keep WELL. They require just as much attention to their environment, their nutrition, their overall health and keeping them happy as dogs do. They don't need to be trained every day or walked like dogs do, but you don't need to aquascape your dog's crate on a regular basis to keep him mentall stimulated, either, or leave your dog in his crate to poop for 4 weeks and then clean it out. They are tricky AND you can't just pop one down to the vet if you think there might be something wrong. (Vets who will care for fish are few and far between.)
Tropicals are easier than marines, I keep both and the differences are apparent, but it can still be very difficult to keep tropical fish healthy and thriving. Most often by the time you even realise that one is sick, you are already past the point of no return.
What doesn't help is that most people overfeed their fish. Most fish, tropical or marine, do not need to be fed every day. Marines do better when fed only twice a week. Overfeeding is the number one cause of stress, illness, upsets in water chemistry, algae plagues and general tank problems. People overfeed, notice that their tank is dirty, do a partial water change, clean the filters (destroying all of the beneficial bacteria that filters house) and then think their problems are solved. A week later the same thing happens. This constant yo-yo of chemical intervention, changing water conditions and death of filter bacteria is, over a period of time, lethal to fish. It is MUCH better to underfeed, test water chemical levels and leave well enough alone. Eventually cleaning it will be necessary, but not nearly as often as I know some people do it. I know people who also make the mistake of getting a friend or a neighbour to come in to feed the fish while they are away. That's fine if the friend is a fishkeeper but it's dangerous if they're not. Marine fish can and will be perfectly fine for up to 2 weeks without food, tropicals even longer than that. It's not necessarily ideal, but I would prefer that to someone coming in, overfeeding my fish and causing a serious chemistry crisis which I am not around to fix.
With marines there is the added issue of water evaporation. The heat from the lights causes the water levels to go down. That's not such a problem, but the resulting increase in salinity of the remaining water (water evaporates, salt does not) IS a problem. So you have to top up the tank with either reverse-osmosis or chemically treated water a few times a week if the tank uses wide-spectrum fluorescent lighting, and every day if the tank is lit by metal halides. It's a very tricky business, and even under the best of circumstances something really stupid can stress a fish and cause it to get sick. Sad to say, but the knowledge of how to humanely euthanise a fish is something every hobbyist needs.
Kate