Measurements - 20” x 10” x 12.5” (L x W x H)
What is the general hardness (GH) and pH of the water?
Do you want male or female guppies, or both?
Assuming the GH and pH are suitable for livebearers (GH above 200ppm, pH above 7.0), you could have about 8 male guppies in the tank. The filters would need to be established before adding that many fish and you would have to do a water change and gravel clean the substrate once a week.
If you want female guppies you could have the same number (8) but you would have to remove the fry (baby fish) when they appear so the tank does not become over crowded.
If you want males and females then get 1 male and 6 or 7 females and remove fry when they appear.
Can you get a 20 gallon tank instead of a 10 gallon?
I only ask because the bigger the tank, the more water it has and the more fish and more variety of fish you can keep in it. Also 20 gallon tanks don't take up my more room than a 10 gallon, and the prices between them don't vary much either.
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If you have an established tank and are simply moving the fish into the new tank, you rinse the new tank out and put it wherever it is going to go. Add gravel and ornaments. Then use the water from the old tank to fill up the new tank as far as it will go. Move the fish and live plants into the new tank. Add the old filter to the new tank. Fill the new tank up with dechlorinated water. Turn the filters and heaters on and let it run.
The old established filter will continue keeping the water clean and over the next month the new filter will develop beneficial filter bacteria too. During this time you simply monitor the water quality for ammonia and nitrite and do regular water changes and gravel cleans.
I have a filter designed specifically for my tank at the moment, it has a seperate compartment designed for the filtration system. I’m not sure if I would be able to move this over.
It's a pretty small tank and might reduce the number of fish you could have in it. If you can buy a standard rectangular tank (without any curved glass) it would probably be cheaper and you would get better value for money. Curved glass is difficult and expensive to make and can make it harder to work out how much water is in there when you need to treat the fish for anything.
The foam and biomax can be put into any filter. You can cut the foam to fit into most hang on back (HOB) style filters like the Aquaclear 30, or into an external canister filter, and you can put it in an internal power filter or even an air operated box filter. Although air pumps can be annoying. The biomax can be put into any type of filter too.
Carbon can be thrown away because it is not normally needed unless you are trying to remove chemicals or heavy metals from the water, and a big water change will usually do that too. Even if you want to keep the carbon, you can put that into any filter too.![]()
All you have to do is cut the foam with a pair of scissors so it fits into the new filter. You don't have to leave it in the current shape. The ceramic beads (biomax) can be left in the mesh bag and put anywhere in any filter.