The Benefits and Drawbacks of Double Tank Stands

About 20 different fish swimming in an aquarium.

Double have been around for a while, but just because they're available doesn't imply they're the best option for an aquarium owner. The answer is mostly determined by circumstances in the owner's house. In certain circumstances, having two tanks occupy the same area as one might be a brilliant idea, but in others, it's a disaster waiting to happen.

Saves Space

Having a twin aquarium stand has a lot of advantages. The space savings are at the top of the list. A twin stand allows you to house two aquariums in the same amount of space as a single tank. If you're like most fish keepers, there's never enough space to keep all the fish you want. Having a second tank expands your fish-keeping possibilities.

Quarantine Tank

There's a solid reason to have a second tank even if you don't need additional space for fish. Although everyone should have a quarantine tank, few individuals make room for one. Before adding new fish to the main tank, they should be isolated for a period of time to ensure that they are healthy. In the same way, it's typically advisable to in a separate tank. Having a quarantine tank on hand allows you to treat ill fish without disrupting the main tank.

Breeding Tank

Fish breeding is enjoyable, but it can be difficult in a communal aquarium. Nutrition and environmental factors have a role in successful breeding. The ideal breeding circumstances may be produced in the breeding tank, and the breeders can then be transported back to the main tank once they have hatched. The fry can subsequently be grown without fear of being eaten by the adult fish in the breeding tank. It's a win-win situation for everyone involved.

Aging Water

Finally, if the second tank isn't being used for fish, it might be utilized to age water. Install a filter and heater in the tank, then fill it with water, treat it, and let it run. Use water from the second tank when it's time to change the water in the main tank. It will reduce the stress of water changes for both you and your fish. Simply fill the secondary tank after changing the water in the main tank, and you'll be ready for the next water change. In the meanwhile, you have a quarantine tank up and operating at all times.

Double Tank Negatives

There is, of course, a disadvantage to employing a twin tank stand. One of the most significant disadvantages is that the second tank is fairly crowded at the top, making maintenance difficult. Larger goods and fish cannot be readily carried into and out of the bottom tank. Because one has either bend over or sit on the floor to view the bottom tank, it is not as fun as viewing the upper tank. However, the lower tank is at an ideal viewing height for tiny toddlers, which raises another possible drawback.

The lower tank is easily accessible by children and dogs, posing a number of hazards. When an aquarium is at a higher elevation, it's difficult enough to keep little hands or curious animal paws out. If you lower the tank to almost floor level, you'll have troubles.

The weight issue is another concern with a twin tank stand that few people consider. The floor may be solid enough to support the weight of one filled tank, but in some places, two filled tanks in the same space may be too much. This is especially true in the case of bigger tanks. Ten-gallon tanks are unlikely to cause any issues, but two 75-gallon tanks are another story. When both are loaded, they may weigh upwards of 1,700 pounds, with all of that weight sitting on a 49-inch-by-19-inch surface. Always calculate the entire weight and double-check that your floor can support it.

Finally, the lower tank is more likely than the higher tank to be subjected to drafts and colder air temperatures. This may be mitigated by utilizing a heater, but it is something to consider when using a twin tank stand. If you're maintaining fish in both tanks, the bottom tank could be a good place to put coldwater species. Then you won't have to worry about them becoming too cold, especially if you reside in a northern location when winter temperatures are cold.


"Management of Fish. Merck Manual Veterinary Manual.  " ;