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Page 48
Comments & Replies


Aquarium Decorations and Ornaments. Click on this image for more information.
Koi - Click on this image for more information about Koi.
Pet Fish Talk is an Internet-Radio Talk Show about Keeping Pet Fish in Aquariums, Fish Bowls and Ponds, that is hosted by the Bailey Brothers, DrTom and Nevin, from 1:00 to 3:00 pm, PT, each Wednesday. Click on this image for more information about Pet Fish Talk.
BIO-Wheel Aquarium Filters. Click on this image for more information.
Click on this image to see a list of over 100 short videos of Tropical Fish.
Champion Koi Show. Expert information about Koi Fish and Ponds.



  If you enjoy reading the Comments and Replies on this page, you may also enjoy listening to The Bailey Brothers, DrTom and Nevin, discuss similar questions on Pet Fish Talk.

Click here to see the list of all the Pet Fish Talk Shows.


Customer Comments

I followed the advise on your site and I have been changing the water in my aquarium everyday and have been doing so for a week. Unfortunately, every time I change the water about an hour later the water is as cloudy as before.
My first thought was to take everything out and do a complete scrub down. However, it might be the filter as well.  If a filter doesn't have it's
cartridge changed could that cause cloudy water?  Please tell me as soon as possible because early tomorrow I will be either buying a new filter or doing a complete cleaning job on my aquarium.
Reply. Hello. If the filter's cartridge is really old an dirty, it could contribute to cloudy water.

Since you are having a problem with your water quality, I recommend that you put some of your aquarium water in a clean container and use that water to rinse the cartridge, then return the cartridge to your aquarium.

By carefully rinsing your filter's cartridge you will retain the beneficial bacteria that are growing on the cartridge, and these bacteria will help clear your water.

If the cartridge contains activated carbon, it is now saturated with waste and will not absorb more waste. But activated carbon doesn't help much anyway.

Click here and read "3. Don't do too Much. Don't Tear Your Fish's Home Completely Apart." Tearing your aquarium apart is a formula for almost certain disaster.

Make small changes to your aquarium each day.

If your aquarium water is cloudy and/or green it is because lots of bacteria and/or algae are growing in your water.

If so, they are growing on some nutrients such as too much fish waste or too much uneaten fish food in your aquarium.

So be sure to do all of the following steps:

(1) Feed floating food and watch your fish eat all of it. Remove all uneaten food with a small net.

Click here for more information about Feeding Fish.

(3) Be sure you have at most 1/4" of gravel. Thick layers of dirty gravel cause poor water.

Click here for more about Cultured Aquarium Gravel.

(4) Be sure you have a filter with a BIO-Wheel.

Click here for more information about BIO-Wheels, where there is also more information about bio-filtration. if you buy a new filter, be sure it has a BIO-Wheel.

(5) Change 20% of the water each day in your aquarium until the water clears.

Click here for more about Cloudy Aquarium Water, and click here for more about Green Aquarium Water.

It takes knowledge and skill to be able to maintain excellent quality water in your aquarium.


Customer Comments

Dear AquariumFish,
I already have 4 bronze corydoras catfish, 3 cherry barba, 1 dwarf gourami, and 3 long-finned zebra danios. I planned on adding 2 more bronze catfish and 1 more dwarf gourami. I was wondering can I still add a rainbow shark (pink). ( by the way I have a 20-gallon aquarium)
Reply. Hello. Let use the rule-of-thumb, "1 inch of fish per gallon of aquarium water".

I guess at the size of your fish, but you can repeat the calculation with the real sizes.

4 Bronze Corys at 1.5" = 6"
3 Cherry Barbs at 1.5" = 4.5"
3 LF Danios at 1.5" = 4.5"

Total inches of fish is 6" + 4.5" + 4.5" = 15" in your aquarium now, which leaves room for 5 more inches of fish. You want to add

2 Bronze Corys at 1.5" = 3"
1 Dwarf Gourami at 2" = 2"

Total inches of fish = 5"

Makes a grand total of 15" + 5" = 20" of fish in your 20-gallon aquarium for an exact fit.

Of course "1" of fish fish per 1 gallon of water" is just an approximate guideline, but it's kind of funny that it came out exactly the same in my arithmetic.

Click here for more information about Danios and scroll down to the section titled "compatibility", where you'll read that Danios do best in a group with at least 6 Danios.

Click here where you'll read that you should keep a group with at least 6 Cory Catfish.

Cherry Barbs are not mentioned here in, but they too should have a group with 6 Cherry Barbs.

Click here and read that it recommends Dwarf Gouramis should be kept in a group of at least 4 Dwarf Gouramis in an aquarium with at least 30-gallons.

Click here where you'll read that a Rainbows Shark can grow to be 9" long and will eventually need an aquarium with at least 50-gallons of water.

I think all these comments give you some facts to consider and show that you should gather facts about the fish you are getting before you get them. 

You can use the Search Page in this website to find the page in this website about the fish that interest you. Click here now to go to the Search Page.


Customer Comments

Hi!!! I really need help on this problem!!!!!!!! I have an arowana that gets picked on by afircan chiclids so i moved it to my goldfish tank. Because it is injured, it wont bother the goldfish but when it recovers, it does.

What can i do now?!?!/? My 90 galoon tank has very large carnivors which isnt suitable for my 6 inch arowana. What can i do? I \have no place to put my arowana. I'm desperate and open to all solutions,!!
Please Help!!
Reply. Hello. I can't think of anything to do except to get another aquarium for your Arowana. Eventually with proper care your Arowana will grow to be over 36" long and need an immense aquarium. Click here for more information about several different species of Arowana.

Your problem illustrates why it's very important to gather
facts about a type fish, such as an Arowana, before you buy it.


Customer Comments

Hi. I was wondering if I could put a betta in with goldfish. Or if the goldfish would kill it. I hope you can help me.
Reply. Hello Krista. Your Goldfish is not a killer and will not kill a Betta. But Goldfish should eat Goldfish food and not eat food for Tropical Fish like Bettas, so it is best to not keep Bettas and Goldfish together. 

Click here for more information about Goldfish, where you'll learn that Goldfish grow too big for fish bowls and do much better in aquariums, and that Goldfish eat TetraFin and Freeze Dried Blood Worms.

Click here for more information about Bettas, where you'll learn for example that Bettas live best in a large fish bowl and eat BettaMin and Freeze Dried Blood Worms.


Customer Comments

I have recently purchased three betta fish. One is in a plant vase and the other two are each in a betta hex box.  

The temperture in my house is slowly dropping and I am concerned about keeping the water tempeture comfortable for them.
My inquiries to the store where I purchased the fish bring nothing but shrugs from the employees.

I have tempeture gauges on each of the bowls but I know it isn't healthy if the tempeture drops below 65.  Any suggestions as to how to keep the tempeture at an even level? I live in Connecticut.
Thanks for your help.  

Reply. Hello Lynn. Click here for information about keeping Bettas, where it states that Bettas need to be kept between 65 and 80-degrees F.

So Bettas should not be in water that is cooler than 65-degrees F., as you mentioned in your email.

I have several Bettas in 1.5-gallon fish bowls in my home, and although I live in warm San Diego, California, the temperature is now dropping.

My wonderful 82-year old mother lives with me, and she doesn't like it, when the house is colder than about 68-degrees, so I set the thermostat on our furnace at 68, and the water in my fish bowls does not drop below 65.

In fact last winter I never saw the water temperature on the thermometers in my fish bowls below 70.

But I don't know how to solve your problem, even though I acknowledge that you have a problem. Here are some radical ideas.

Some folks keep their Bettas in their warm water aquariums during cold weather. You can keep each male Betta in an Aquarium Net Breeder, that's set inside the aquarium.

Net Breeders are usually used to isolate pregnant female fish and their babies. Click here for more information about an Aquarium Net Breeder.

Actually you may be able to let one male Betta swim freely in your aquarium. It depends on what kind of fish you have in the aquarium, then put each of your other two Bettas in a separate Net Breeder.

Sometime males Bettas will get along together in a large aquarium. Usually they won't get along in the same aquarium.

You can also float fish bowls inside a warm water aquarium, and this arrangement will keep the water in the fish bowl warm, but this is a rather precarious arrangement.

If the fish bowls are made of glass, they may bump on the side of aquarium and crack the bowl or crack the aquarium. A plastic fish bowl would not cause this problem, but a plastic bowl still might sink, if it's bumped.

Here is, what I would call, a radical idea. I recently saw some very low wattage coffee cup heaters in a pharmacy, and seeing the coffee warmers reminded me of a friend named Kim, who I knew many years ago.

Kim put fish bowls with water but no fish on top of similar coffee warmers and checked the temperature, after a few hours, and the temperature was always too high.

So Kim put enough pieces of non-flammable insulation between each coffee warmer and the bowl that sat on top of the warmer, until the temperature in the bowl was just right. Then Kim replaced the test bowl with a similar bowl that contained a Betta.

I'd visit Kim's fish room and see these fish bowls precariously stacked on top of several pieces of insulation on top of the coffee warmers. This could not not possibly have been a safe arrangement, and I don't recommend it.

If you think of a better and safer way to keep your Bettas warm this winter, send me a report, and I'll post it here on, so everyone can benefit.


Customer Comments

I was reading the email from Lynn in Connecticut and had another option for her. I was looking at the aquariums on Ebay the other day and I saw what I believe is a 10-gallon fish tank with glass seperaters in .. it had 4 individual areas where she could keep each betta add a heater and they should be plenty warm this winter. Anyway hope this helps,
Thanks for your very imformative website,
Reply. Hello Melissa. I'm glad you reminded me. I've seen these aquariums too. One such aquarium that I saw was called a Betta Barracks.

It was about 24" wide, 6" tall, and maybe 4" from front to back, with about four glass dividers making five separated Betta containers, which each end up being about 5" x 6" x 4", which is rather small for a Betta.

I'm guessing it would be difficult to fit an aquarium heater into this aquarium, but it might be possible.

If you had an aquarium heater in one of the five separated containers, you'd need to circulate the water to the other four containers, or one Betta would be too hot and the others too cold.

So to make this project work we still need a small aquarium heater and some way to circulate the water.

My brother says he has a simpler method. He puts his plastic Betta bowl on top of his refrigerator during the coldest months. It's warm on top of his refrigerator, because his refrigerator produces heat on the outside, as it cools on the inside.

I just checked my refrigerator, and it's not warm on top, but it is warm on the sides. I could put my Betta bowl on the counter beside my refrigerator, and the water would probably be a few degrees warmer than it is now.

Thank you, Melissa, for your complimentary comment about

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