This is a Seapora breeder tank. It does not hold water and is meant for arachnids and scorpions or other small animals. I kept a scorpion in here. As you can see in the photos, it is not very tall, so make sure your animal is suitable for this tank. Just guessing it's probably 5 to 8 gallons in size. Again, does not hold water. Asking $20 for the tank, must be picked up. I will rinse it out beforehand (just coconut fibre dust in it).