Black crawly things!!!

[NEON]

I have what looks like black dots at the bottom of my tank, but when i look closer they move!! But unlike baby snails they move pretty quick, they are too small to figure out what they look like, can anyone give me any idea as to what they are? as i dont want them doing any harm to my fish!!!

 

[William]

Can you by any chance get a photograph, what size are they?

 

[Magnolia_360]

Is there any chance they could be baby fish or maybe they're bugs that got into your tank.

 

[babyfish]

Give the gravel a good clean anyway, that way you can look at them with a magnifying glass

 

[NEON]

They are very very small, but a few hours later when i looked again most of them had gone. Unfortunately i dont have the gadgets to show u a picture. The only thing i can think of is i put some new gravel in when i did a water change.Do u think they could be bugs off that? if so can they be harmfull?

 

[Loveless]

I think they are treat for your fishes

I wish I had worms in my tank

 

[finius]

I had some of these in my snail and bloodworm tank(don't ask). I think they killed my snails. I dumped out the water. They were really disturbing to watch. It's weird how nature can take over.

 

[Tempestuousfury]

Could have been fry. If you have danios, then it might have been danio fry. I've got a crapload of little crawly things that I can't see unless they're on a dark surface, and I was told they're always there....