Hi,
Go with about 1ml every 2 days in morning and check no3 after 4 days.
A few points to note:
1: You can also use sugar(normal), 1/2 teaspoon will work as above.
2: After a few days +/- the water may/will get cloudy this is normal once skimmer is working it should clear in a day or two. Please be aware the bloom will reduce free O2 in water so just watch the fish (thats why you dose in morning)
3: This a short/med term solution, you need to find out why the LV/DSB is not working (not enough flow/dirt)
4: When is doubt use less, but it looking good increase to each day.
What is does is supply food for the low O2 bacteria to process the nitrate to a gas form. The eat they sugars and breath the no3.
It does work very well but as with every thing their is a downside, while feeding sugar/vodka the bactria build up, but stop the feed and the die off again, And so the nitrates return.
I've used it for short term crisis issues and worked perfectly fine, please watch your coral some softys really hate it, either the like the nitrate or the hate increase in sugars but you may loose some over extended use.
I know guys with FOWLR who use it as part of topping up tank and have done for years.
Ok, hope this helps, im no expert but i think i got the basics right?
