Red tailed shark in my aquarium

I wouldn't worry about the small fish. Red Tail Sharks come out of their cave (very important to provide it with a cave or hidey-hole it likes) and chase other fish, but mine has never actually attacked. I would be more worried about the slow-moving frilly betta sharing space with the RTS, but perhaps someone with experience here will answer you.
Mine LOVES living in a black plastic plumbing elbow thingie disguised with some rocks around it and a flat rock on top. I went to the store and bought an assortment of these little plumbing things and rinsed them off well. All the bottom dwelling fish adore them.

How big is your tank? I don't see any compatibility issues, though the shark will chase anyone who comes into his turf. It's very important to provide them with a cave of their own. The biggest concern would be long term care--if this is anything smaller than a 29, I wouldn't add the shark.

I have had lots of compatibility problems with RTBS and bettas. The betta always being the loser

I have an uncle who kept a rts with his small tetras and it ruined his tank. the rts dominated the tank, forcing everything else to hide.

i had an rts with cichlids and bigger fish only, but he really never hid in a cave. he just swam around chasing anything that was smaller than it

I have a 55 gallon with a red tail shark, 3 algae eaters, 3 cories, 5 buenos aries tetras, 2 glolight tetras, 2 black neon tetras, 4 pearl danios, and 1 green barred danio. I have a long flat rock sitting on 2 rocks to form a cave like space for my red tail, and usually he stays on one side and an algae eater stays on the other. I bought the 4 pearl danios a couple of days ago and they're pretty small (1/2") and the shark hasn't bothered them. He'll chase an algae eater that comes too close to him when he's chilling in his home or one will try to chase him if he's too close to them, but other than that he pretty much seems to keep to himself, even when he's out roaming about the aquarium. I've never seen him bother any other fish but the algae eaters, who are roughly the same size (2-2 1/2"), so maybe he just is bothered by ones who are a threat to his "dominance" or something. Hope that helps.

I have always kept rtbs and have never seen one eat another fish yet.
They will chase the other fish in your tank but won't really harm them.
They are a very beautiful and active fish , enjoy.
Ps be careful they can jump like an olympic athelete.
Cheers.

i have a 20 gallon tank with 2 algae eaters, 2 black phantom tetras, 2 cardinal tetras, 1 neon tetra, 5 tiger barbs, 2 peppered corys, and 1 dwarf gourami

should i get a red tail shark

sinistersaint said:

i have a 20 gallon tank with 2 algae eaters, 2 black phantom tetras, 2 cardinal tetras, 1 neon tetra, 5 tiger barbs, 2 peppered corys, and 1 dwarf gourami

should i get a red tail shark

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No. A 20g is too small for that fish.

I agree and this thread is now over six years old! Can someone move it to help him/her out.