Jason M
Aquarium Advice Freak
- Joined
- Oct 29, 2011
- Messages
- 409
If u were in a garage filled with co2 by a running car like nitrates could be to a fish. Wouldn't I want someone ro open the door and get a ton of fresh air in for u. If u take ur nitrates down fast it should be a relieve go the fish. The reduction in nitrates is directly proportional to the % of ur water change. If u got a 30g tank and change 10% then I should have reduces them by almost 50% provided u have 1 Pound of lr per gallon and same with sand