Indoor pond for arowana project

Just like the title says lol

I do not know what to do cement or pond liner ? Any idea ? Also it's going to be above ground by a glass or acrylic windows also should I do acrylic ? Or glass?
Do I need a bottom drain? I don't think it's to popular in indoor pond for exotic fish mostly for koi ponds but when ever I google indoor pond bottom drain I only get koi ponds
Should I use a aquarium filter? Or a pond filter my koi pond which is 1600 gallons has a Laguna 3200 built in uv works good does its job but it's not the best filter
I am thinking about adding 2 Laguna 3200 which is rated for I think 3,000 gallon ponds
Or I get a few FX5 idk much about filteration yet but I'm adding a uv
I'm making the prints right now sketches will post them soon
Pond is going to be 1000G maybe 2
It's mostly for aros and datnoids masheers maybe stingray
It's not going to be heavily planted hmm that's about it lol thanks


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I was thinking about a bead filter for my koi pond but there kinda to big for indoor ?
Idk what if I go smaller to 600-700G tank would I still need a bead ? I think so lol I'm also prob gonna need a big UV


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Lol idk I just said big uv but I don't know is this is true or not uv can kill parasites ich stuff like that?
I just have to figure a way out to get the liner and the glass in toghther unless I don't do glass or
Make a glass square with out the top that would be like a big tank then

I tryed going there my app keep on crashing I will try again


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