I'm using crushed lime stone in my 430L as my pH was dropping below 6, not too much of a problem for my fish but would rise upto around 7 on a w/c and I wanted to keep it more stable. It now sits about 6.8.
I wouldn't think it would help, but don't know. They should be actively coming into contact in the top-middle of the chamber and as they are rising in the bubbles
I didn't say imported but should have said breeder. In other parts of the world antibiotics are routinely used with in animal breeding/rearing (even if they aren't permitted)
Two circles, media and bubbles rising on both (two) sides and falling in the middle. I would thnk that this would be the best way to get fluidisation in a rectangle chamber of a sump
in that case I think I would buy 2 of those bubble wall stones and have one on either side of the chamber:
View from above
------------------------------------------- <= Sump wall
|===================| <= Bubble wall
| K1 |
| K1 |
| K1 |
| K1 |<= First weir
| K1 |
| K1 |
|===================| <= Bubble wall
------------------------------------------- <= Sump wall
I can almost guarantee that the imported fish will be in antibiotics all their life. I have no experience in fish but in another industry I have worked in overseas where antibiotics were all but banned (but not tested for) they were routinely used by some to treat both disease and prophylactically
I'm a rightie but eat as a leftie, can never figure out why you would want to teach you kids to use a fork with their uncoordinated hand... although I will eat as a rightie if out at a restaurant
Sorry to hear that your loach died. I lost three when the heater on my tank got unplugged over winter and the temp got down to around 12 c.
Here is a thread of the tank I had setup for them: http://www.fnzas.org.nz/fishroom/viewtopic.php?f=4&t=59465