通常，在收到的最初48小时内，新的到达不会进食。通常，当您的鱼适应其新环境时，您的鱼会恢复进食，并且再次舒适。但是有时候，您会遇到一个固执的标本，虽然健康，但会拒绝吃饭。那为什么不吃东西？最常见的三个原因是压力，寄生虫和便秘。
Stress
Often transit is difficult on the animal, and acclimation to aquarium life is made doubly hard when introduced to a tank with preexisting tankmates. Be sure to quarantine animals prior to addition to your tank. This allows them ample time in solitude so that they may adjust to aquarium life. Once the animal is comfortable, they will often begin eating with gusto.
When quarantining tangs and other large fish, make sure that the quarantine tank is of adequate size. They will often pace nervously in a smaller tank, and never feel comfortable enough to eat. Use black construction paper or spray paint, and blacken out three sides of the quarantine tank before adding the animal. Black walls and dim lights tend to keep tangs calmer.
在隔离或浸入中施用亚甲基蓝，也可以帮助减轻新来者的压力和加速恢复。亚甲基蓝充当轻度的抗菌和抗真菌，同时增加了动物的可用氧气。它还可以帮助改善氰化物中毒的作用（与人类受害者一样）。亚甲基蓝也是一种染料，使水变成朦胧的蓝色。这似乎对鱼类减少了水中的光量，进一步使动物平静下来。
寄生虫
尽管鱼看起来可能很健康，但它们通常可能带有我们看不见或无法发现的寄生虫。这些寄生虫会引起压力，从而减少动物的食欲，或者它们可能中断胃肠道，从而阻止动物消化食物。隔离允许对动物进行密切监督，并施用预防药物，例如亚甲基蓝，孔雀石绿，铜等。
如果您认为您的鱼可能会遭受内部蠕虫的困扰，以防止蠕虫进食，那么普拉齐特尔（Praziquantel）（商业称为prazipro）就是驱虫的有用工具。发现通过喂养或喂食给药最成功。但是，它可以直接剂量到水柱。
Constipation
很多时候,动物可能会便秘的transit and the ongoing stress. This constipation prevents further digestion and thus eliminating the animal’s appetite. The simplest way to remedy this is to administer a freshwater dip. Prepare a few gallons of fresh water, and adjust it so that it matches your quarantine tank’s temperature and pH. To adjust pH, you can use simple pH buffers such as SeaChem Marine Buffer, or Kent Marine pH Buffer. Many animals will defecate within seconds of being in the fresh water. Examine the feces under a magnifying glass for flukes or worms. You may dip the animal anywhere from 2 minutes to 20 minutes. Keep a close eye on it, and move it back into the quarantine tank at the first sign of distress. Often, the animal will begin eating within hours of reintroduction to the tank.
说服你动物吃的其他方法
如果您的动物仍然固执，还有许多其他小技巧可以让它们吃。对于Planktavores而言，多种活食可以引起强烈的喂养反应。实时盐水虾，婴儿盐水和淡水玻璃虾通常很容易实现的实时食品来源。一旦动物进食，就可以用prazipro或其他驱虫药将活食品吞噬，以进一步清除其胃肠道。
For animals that are herbivores or must be fed palletized or dry foods, there is anecdotal evidence that soaking foods in garlic can elicit a feeding response. Soak foods in a mixture of garlic extract and marine fish vitamin supplements, and feed in small amounts. There are quite a few commercially available garlic products such as Kent Marine Garlic Extreme, SeaChem Garlic Guard, and Ecosystem Aquarium Garlic Elixir.
如果其他所有失败
If all else fails, you can help nourish the animal back to health by feeding it indirectly. Helmut Debelius, in The Marine Atlas Vol 1, suggests that many fish can absorb sugars from the water column, while not actively ingesting foods. Fructose, if available at your local drugstore, is the only appropriate sugar to dose. Fructose should be dosed 5 mL to every 10 L of quarantine tank water. This allows your animal enough survive and heal during intense periods of stress and hunger. After your animal has overcome any existing infection or other issue, it will then resume eating.
Conclusion
不幸的是，有时，尽管您尽了最大的努力，动物会枯萎。一些疾病很难诊断和治疗。在这种情况下，考虑对动物进行安乐死，以避免进一步的痛苦。
Take your time, and be patient with new arrivals. Follow through with your treatment regiments, and reduce stress on your animals at all costs. Usually the shyest eater will eat with gusto if treated properly.
