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Texas Aquatics

Tropical Fish Store

FAQ Frequently Asked Questions 

1.What size tank should I buy?

It is always a good idea to measure the space you want to put the aquarium and purchase the biggest one that will fit in that area. Larger aquariums are usually easier to maintain and cycle faster.

2.How much filtration do I need on a aquarium?

We recommend 2 different forms of filtration on every aquarium. Some choices are sponge filter, canister filter, back filter or wet dry systems. it is always better to have extra filtration

3.When can I add my first fish to a new aquarium?

Allow 24 to 48 hours before adding new fish, remember to add extra chlorine remover!

4.What do I do if my first fish dies?

Most aquariums go through a cycling period that usually last 2 to 4 weeks.during this time your water will not be biologically stable.On average, we recommend your aquarium ph level to stay between 7.8 and 8.3(certain fish require it lower) Both the ammonia and nitrite levels need to be at zero. However during the first 2 to 4 weeks it is normal for it to rise and fall. It is for this reason that we prefer you begin your aquarium with a few inexpensive fish or feeder fish.It is not uncommon to lose several or all fish during this period , simply discard any dead ones.

5.When should I get my water tested?

For a new tank: Please allow 10 to 14 days for your aquarium to cycle before bringing us 1/2 cup water to test (we can not test water that has fish in it)Please only bring water

For an established tank: It is always a good idea to have your water tested before adding new fish. It is recommended that you get your water tested every few months just to keep tabs on it. We test water for free. (We can not test water that has fish in it) Please only bring water. Remember even a clear aquarium can have water quality problems.

6.When can I add additional fish?

Once your aquarium is stabilized it should be safe to add additional fish or if its a pre-existing aquarium after you have just done a water change. Ask a sales person how many you can safely add at a time and let them know how long your aquarium has been running with fish in it. We recommend adding 2 or more fish at a time to lower chances of original fish picking on the newcomers.

7.When do you need to add scavengers?

If it is a new aquarium there is nothing for them to clean up therefore they can starve easily . Please allow 4 to 6 weeks before you add scavengers.

8.When should I begin doing regular water changes?

Begin regular water changes after your aquarium has stabilized. You will know by bringing us a sample of your water to test. Remember even a clear aquarium can have water quality problems. It is very important to do regular maintenance which includes water changes and changing carbon or filter pads monthly ( if filter requires these items)


NEVER Leave lights on all the time! Leave your light on for 6 to 10 hours a day.

NEVER Follow the directions on food packages! Feed once a day, no matter how big your fish are.

NEVER Put your hand/arm into the aquarium if you have lotion , perfume, or other chemicals on of any kind!

NEVER remove your fish from the aquarium to clean it!

NEVER completely empty your aquarium and clean it out. That causes it to re-cycle and fish could die.

NEVER use any cleansers to clean ANYTHING going into your aquarium or spray aerosols close to it!

NEVER add fish to an aquarium unless you have done a partial water change within the last 2 weeks!

The main key to maintaining a successful aquarium is to be patient, keep a regular cleaning schedule, and never over feed your fish.