black finned shark and violet goby compatible?

Question

I was sold a black finned shark and a violet goby(as a Dragonfish) both as FW tropicals, neither stated longer than 8 - 10 inches. I have since discoved both are BW - marine water and will get quite a bit bigger. My question is are these 2 fish compatible. I still have the BF in a fresh environment as (he's?) still tiny - 1 1/2 in and the goby was changed over within 2 weeks. (he?) is already approx. 9 in. Fed mostly freeze dried shrimp and bloodworms - seems to thrive on them. I am hoping to acclimate the BF to BW and house them together?

Answer 1

I think they should be okay together. The dragon will not bother the shark at all, and the shark is fairly small at this point, so probably won't bother the dragon. As the shark grows, however, he may become a problem. Make sure you provide plenty of hiding places for the goby - fake plants, etc. He'll also burrow into a soft substrate like sand if need be.

You're correct in that both will prefer brackish water and can live in full marine.

Answer 2

Black fin sharks aka Columbian sharks will choose a brackish set up as they grow previous. in addition they advance fairly super, and could choose a brilliant tank, i could say minimum of 75 gallons. it may likely finally consume the tetras or smaller fish because it gets older, and the shrimp could be lunch very immediately.

Answer 3

I have never had trouble with either being aggressive towards one another. however give fair chance and don't put a tiny fish in with big ones.