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Frequently Asked Questions

In general, you want to replicate the natural cycle of day and night, which means you can turn on the light when you get up in the morning after about 6-7 hours of nighttime. Your lights also have Wi-Fi connectivity, so you can easily set up a timer from your phone through the Marineland app. If you experience any algae buildup, the first thing you can do is cut back on the amount of time your lights are on.

Yes, you should remove the gravel from the bag and place it in a clean bucket. Run water over the gravel several times to remove any dust that may be on it. Then hold the gravel in place and empty the water from the bucket. A household colander can help speed up the process.

If your heater is not maintaining the correct temperature, make sure it has been in operation for 36 hours. The heater will slowly raise or lower the temperature over time. This will prevent a large temperature swing that can shock the fish. If it is still not working properly, please contact Fish Wish at 800-526-0650. Please note: never remove a heater from the water if it is still turned on. Unplug it first, let it cool, and then remove it.

Aim to feed your fish two to three times daily. A few flakes per fish is sufficient. Your fish should eat all the food in two minutes or less—if it’s taking them longer than two minutes, simply feed them fewer flakes until you find the ideal amount. Overfeeding is not only harmful for your fish, but it can cloud your water as well.

Your fish may have fin or tail rot, but don’t panic. Test your water for high ammonia and nitrite levels, which can lead to the disease. Treat this as a bacterial infection. Your local store should have a medication available.

It sounds like your fish has the parasite called Ick. This parasite is found in all aquariums, but it normally cannot attach to the fish unless the fish is in poor health. You should test your water for high ammonia and nitrite levels. Your local store should have a medication available. Keep your aquarium lights off to disrupt the parasite life cycle. Increase your aeration and elevate your temperature to 85°F, at a rate of one degree every five hours until you reach 85°. Treat for 10 days.

If you did not use Tetra AquaSafe® to remove the chlorine, it’s possible the fish gills are being burned. This will cause the fish to dart around the tank. If it has been fewer than 24 hours since you added the fish, add Tetra AquaSafe® now. This behavior can also be caused by fish fighting. Make sure another fish is not harassing the distressed fish. If this is not the case, test the water levels for ammonia, nitrite, nitrate, high pH, and incorrect temperature.

Rapid breathing could indicate a number of things. It could be stress from a harassing fish or fish may sometimes breathe rapidly from the shock of being transported, as well. You should test your water for high ammonia, nitrate, pH, and nitrite levels. These can be toxic to fish and cause stress. Also check for signs of parasites or disease.

The first thing you should do is test your water with Tetra EasyStrips™ for high ammonia and nitrite levels. A bad smell is usually a sign that excess waste is in the tank, and usually excess food. To correct the problem, change out 50% of the water, wait one whole day, and then change out 25% more of the water. Be sure to use Tetra AquaSafe® when replacing water to make your tap water safe for your fish. Also make sure when you feed the fish that they are eating all the food in two minutes or less.

The cloudiness you are experiencing is probably one of two things:

First, overfeeding your fish can cloud your water as the uneaten food is allowed to decompose. At each feeding you should feed no more than what your fish can eat in one to two minutes. Excess waste, like excess food, gives off ammonia and nitrites.

Second, your aquarium could be experiencing what is known as “new tank syndrome.” When you set up a new aquarium or when you carry out a large water change, it is very natural for your water to become cloudy as part of the system’s normal biological cycle. The reasons for this are fluctuations in the nitrogen cycle, and the release of gases in solution as the result of an increase in water temperature. A water change of 50% or more will help by restarting the cycle. Also, be sure to monitor and change your filter cartridge on a regular basis.

Test your water with Tetra EasyStrips™. High ammonia and nitrites would indicate excess food or waste. A 25% water change will bring down these levels until you can fix the problem.

This is due to algae in the water. A few things can cause excess algae. The first thing is direct sunlight on the tank, so make sure your aquarium is positioned where this can’t occur. Another issue could be excess nutrients, which will elevate ammonia and nitrite levels, giving algae plenty to feed on. To solve the problem of green water, do a 50% water change and scrub down the insides of the glass with a magnet scrubber or scraper (do not use soap!). Remove any artificial plants and ornaments, and pour boiling water over them. Wait one whole day, then do a 25% water change. Cut back on your feeding so your fish eat all their food in two minutes or less.

In nature, waste products from decaying matter, fish waste, and other animal waste are naturally filtered in multiple ways. In an aquarium, the natural filtration is replaced by equipment, with filters the water. The larger the aquarium you own, the easier it is to keep the water balanced and healthy. To ensure the ammonia and nitrite levels have not reached harmful levels, be sure to test the water regularly.

To understand how filtration occurs, one needs to understand the cycle. Fish waste and other decomposing material will produce ammonia. In high quantities, this chemical will kill animals in an aquarium.

Add Tetra SafeStart® to your new aquarium. SafeStart accelerates the establishment of the bio-filter in newly setup freshwater aquariums. The live bacteria start working immediately to provide a safe and healthy environment for your fish without the long wait. SafeStart can also be used after a water change, when adding new fish, or after medicating.

Elevated levels of ammonia and nitrite should not occur in a “cycled” tank. Causes of elevated levels in a mature system would indicate over-feeding and should be corrected immediately.

No, filter cartridges cannot be reused. The cartridge should be changed at least once a month or when you see a noticeable decrease in water flow.

The cartridge should be changed at least once a month or when you see a noticeable decrease in water flow.

No. GloFish are traditionally bred; their unique and harmless color is a hereditary trait that is passed from generation to generation.

Today’s GloFish fluorescent fish are bred from the offspring of fluorescent fish that were originally developed several years ago. Each new GloFish inherits its unique color directly from its parents and maintains the color throughout its life and passes the color along to its offspring. The fluorescent protein genes are derived from naturally occurring genes found in marine organisms.