You should probably have at least 30 litres to give them a good enough space to live comfortably in. The tank you've got there looks pretty small. The filter will also help to keep the water moving, agitating the surface, and allowing for more oxygen to dissolve in the water.Įnsure that you are doing regular water changes (normally between 15-25% a week) to keep the levels of nitrate down. If you haven't got yourself a water quality test kit you'll probably want to look into that too. To keep a tank sustainable for fish it must be 'cycled' so that you don't get a build up of toxic ammonia in your tank. You'll want to check out the nitrogen cycle if you're not familiar with it already. Generally in my experience, a large volume of water is easier to keep at a higher quality because fluctuations caused by water changes have less impact on the aquarium's water quality parameters.Ī filter is a must for a sustainable tank for a number of reasons. Source: Guppies and Mollies - .ukĮven if you live in a climate that might allow the temperature to normally reside within this window, you'll probably want a heater for consistency. Whilst guppies can survive in colder water, to make a fish thrive you want to provide all the chances you can.Ī stable temperature is very important and warmer water around 25-28 ☌ (77-82 ☏) tends to provide the best conditions You didn't mention having a heater for the tank and I cannot see one in the picture that you have provided. If they are seen trying to scratch their eye out, its time for the eye to go.There are a couple of issues that I can see here that may be limiting how your fish grow. Not only do they cause a cloudy eye, they can cause serious neurologic trauma if they work hard enough.įor benign masses, we usually don’t treat them unless they are cause the fish discomfort. These pigment cell tumors are usually fairly benign, but if they root on the eye, a fish may feel them drag when they swim and try to knock them off. For koi in particular, we see the occasional chromatophoroma run amok. Suspected increased UV exposure and potential heavy metal contamination increase the likelihood for various cancers. This seems to be more the case for fish living outside in a pond than indoors in a tank. Fix your water quality and your fish will fix itself! Cancer Yes, one of the signs of chronic stress other than lethargy, decreased appetite, poor immune function and no reaction to Marvin Gaye is decreased healing, so even the smallest abrasion can get serious quickly. The second most common cause of fish cloudy eyes is poor water quality. Providing clean water and a health diet, in addition to removing potential collision, are the best treatment for a traumatic cloudy eye. Eye drops are a complete waste of time since they will come off the instant your fish swims away. There is no treatment for traumatic eye injuries in fish. Plants specific to bettas, made of soft fabric are the best option. If buying a “normal” goldfish isn’t an option, be sure to provide your ocularly-challenged goldfish a soft and obstacle-free environment. Fish with eyeballs bigger than their heads and lots of obstructions in their tanks often suffer from chronic, repeat injuries. Although you’d think this would be an asymmetrical event, we often see fish with both eyes damaged, but not to the same extent.ĭepending on the level of damage, the cloudy eye may be temporary or permanent. The cornea on the outside of the eye can turn cloudy as the fish’s immune system swims to the rescue. This is the cause of most cloudy eyes in fish. Without eyelids to protect their corneas, a simple abrasion can result in a localized inflammatory reaction. Thankfully, humans, cats, dogs, horses and many other species have eyelids to protect their eyes from most serious injury. Koi with cloudy eye Trauma – The #1 Cause of Fish Cloudy Eyes
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