"Elaine T" wrote in message
om...

Yeah. Standard AllGlass hoods have the lone virtue of growing very little
algae. Nitrazorb works well and has never done anything bad to tanks
where I've used it temporarily.

I bet there are nitrates in your tap water too. Have you tested it?

Yes it does. Which is why I double dose at waterchange with Amquel Plus.
One of the bigger LFS has 4 'Basic Rules' posted- Do Not overfeed. Do double
dose with Amquel. I forget the other two but none are specifically related
to Nitrates. It is apparently just their big 4 they frequently
answer/suggest. Ah yes - third is Do regular water changes. They were
horrified when I said I was using Plus. They said they have had several
clients kill all their fish with it. Currently I still use it, as I have
from the start.

I actually started with Prime on my newest tank. I have heard good things
about it. My biggest concern with it is simply that it is so potent it is
hard to dose in small waterchanges. So I mixed 5 ml with 16 oz of distilled
water and now 'dispense' it at 1 oz per 3 gals changed. The instructions
say 5 ml per 50 gal. Do you see any problems with diluting it, so long as I
shake it up each time.
Thanxx
Bill