I got 3 clown loaches to accompany my new baby aro. Well they live in this ornamental fish tank "ruins". The one I haven't seen for days. I can't cath them all out to remove the ruins, today I even flushed it with water and chunks of black and orange and fish chunks floated out. So I have maybe a dead one in there, 2 live that go in an out, I can't get them out, I can't see up it, this is sick. How do I get them dead and alive and maybe the stuck one out without ruining my ruins.??Or killing a fish by accident?