Sand substrate in a high flow tank...

[ssrprelude]

find someone to blow you some out of glass or acrylic.

I actually looked into that! Cost was crazy just for one set.

[eklikewhoa]

ball son, ball

[ssrprelude]

Watch out foo. You might get what you asked for.

[eklikewhoa]

LoL, I'm very helpful at spending other peoples monies...

[sunkenmetal]

get some acrylic tubing and cut it yourself