I just got this tank going maybe a week and a half ago. I believe it is 20 gallon, but I cannot be sure. There is no sticker, how can I know for sure? I have a couple questions regarding the tank and a couple fish. For one, I started out with a smaller 5 gallon tank and purchased a 2-10 gallon filter right before upgrading to this tank. Now that I have this tank going, I am wondering if I should get a bigger filter? This 10 gallon filter is keeping the water clean, but I feel like I am going through filters cartridges fast.
Second, there is one fish I got I do not know the type. I forgot. It is the female, yellow platy with some rainbow colors on the sides, about the size of a mollie. Also, I got this green lantern platy yesterday, male, and it has been going rounds with the other fish. I do not know if it is fighting, posturing, or just teasing. They get into these nipping matches where they spin in "ying and yang" circles nipping at each other. The goblin started out targeting my black mollie which did not go well because my mollie is a big beast.
Then the lantern platy started teasing another male mollie. Then today, it has started teasing the unidentified platy with the yellow. So far the only fish showing any damage is the lantern platy with a small red scrape under his side fin, but I cannot say whether it was there when I got him or not.
I am also curious to an issue I faced with a couple of my first fish. One of my very first was a dalmatian mollie that came out of the store sick, it always let its rear fin drag and never really used it. It died, and then later I got a white mollie that did the same thing. From the store these fish were sick and I have not had the issue with any other fish. What is the main cause for a fish to stop using its rear fin and die? It is part of the "shimmy"?
Any help, info, suggestions would be great. I think I got it all right, I got pretty much everything I could as far as tank supplies from bacteria supplement from when it was a new tank, water conditioner, ph balance, the filter, oxygen, aquarium salt...
Second, there is one fish I got I do not know the type. I forgot. It is the female, yellow platy with some rainbow colors on the sides, about the size of a mollie. Also, I got this green lantern platy yesterday, male, and it has been going rounds with the other fish. I do not know if it is fighting, posturing, or just teasing. They get into these nipping matches where they spin in "ying and yang" circles nipping at each other. The goblin started out targeting my black mollie which did not go well because my mollie is a big beast.
Then the lantern platy started teasing another male mollie. Then today, it has started teasing the unidentified platy with the yellow. So far the only fish showing any damage is the lantern platy with a small red scrape under his side fin, but I cannot say whether it was there when I got him or not.
I am also curious to an issue I faced with a couple of my first fish. One of my very first was a dalmatian mollie that came out of the store sick, it always let its rear fin drag and never really used it. It died, and then later I got a white mollie that did the same thing. From the store these fish were sick and I have not had the issue with any other fish. What is the main cause for a fish to stop using its rear fin and die? It is part of the "shimmy"?
Any help, info, suggestions would be great. I think I got it all right, I got pretty much everything I could as far as tank supplies from bacteria supplement from when it was a new tank, water conditioner, ph balance, the filter, oxygen, aquarium salt...