Help! Giant Danios Swimming At The Top

I got 6 giant danios last night and ever since I put them in the quarantine tank all they’ve done is swim at the top of the tank skimming the surface like a hatchet fish. They aren’t gasping for air and everyone else in there are perfectly fine and acting normal. Water parameters are:
Ammonia 0
Nitrites 0
Nitrates 20
PH 7.4

 

That's where giant danios swim. They're top and mid dwelling fish. If they aren't gasping for air or struggling to swim they're probably all good

 

That's where giant danios swim. They're top and mid dwelling fish. If they aren't gasping for air or struggling to swim they're probably all good

Oh. In the store they swam and chased each other throughout the tank. No gasping for air and they’re very active they just swim more like hatchet fish.

 

I have 6 giant danios I added to my tank back in February, and they're kind of all over the place. Your water parameters are good and giant danios seem to be very hardy fish, I wouldn't worry about it too much just yet.

 

I have 6 giant danios I added to my tank back in February, and they're kind of all over the place. Your water parameters are good and giant danios seem to be very hardy fish, I wouldn't worry about it too much just yet.

Thank you. When do I worry? How big did yours get? Some sites say 4 inches and random ones say 6.

 

I imagine they're just acclimating, give them a dose of stress coat and they'll likely be fine. My 6 cycled the tank and survived an ich infestation (thank you so much petsmart) along with a couple ph swings while I was getting used to having a tank again for the first time in many years...so they're pretty tough. They're also extremely active, so as long as your water chemistry is in order I wouldn't be concerned unless they become sluggish for a couple days.

 

I imagine they're just acclimating, give them a dose of stress coat and they'll likely be fine. My 6 cycled the tank and survived an ich infestation (thank you so much petsmart) along with a couple ph swings while I was getting used to having a tank again for the first time in many years...so they're pretty tough. They're also extremely active, so as long as your water chemistry is in order I wouldn't be concerned unless they become sluggish for a couple days.

They’re now swimming all over the tank chasing each other like my other danios. They also colored up and are eating great. I never had fish do that before. How big did yours get?

 

They were all 1-2 inches when I got them, the biggest among them is a little over 3 inches at this point. Because they are so active measuring or photographing them is next to impossible, but that didn't stop me from trying this morning.

 

They were all 1-2 inches when I got them, the biggest among them is a little over 3 inches at this point. Because they are so active measuring or photographing them is next to impossible, but that didn't stop me from trying this morning. View attachment 448594

I think you need one more. I really don’t know what to do with mine. Hubby got it as a surprise for me. He told the LFS I needed another longfin leopard danio and came home with Slick. I have a twenty nine gallon and just cranking up a forty long. Decisions. Hubby says you got a good pic.

 

I think you need one more. I really don’t know what to do with mine. Hubby got it as a surprise for me. He told the LFS I needed another longfin leopard danio and came home with Slick. I have a twenty nine gallon and just cranking up a forty long. Decisions. Hubby says you got a good pic.

Stocking around them was something of a problem I hadn't considered until I was ready to add more fish after cycling. The children wanted glofish, so we eventually ended up with 6 assorted color glo-tetras which all seem to be doing well. I also added a gold severum and although he's a bit reclusive, he's growing and also seems to be doing well.

 

Stocking around them was something of a problem I hadn't considered until I was ready to add more fish after cycling. The children wanted glofish, so we eventually ended up with 6 assorted color glo-tetras which all seem to be doing well. I also added a gold severum and although he's a bit reclusive, he's growing and also seems to be doing well.

That’s good. Unfortunately my guy will be alone.