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Do you have any pictures of how you have it set up, just curious?I use my first chamber as a prefilter. It works very well. Since I have started using it I have noted that it takes much longer for a bacteria film to grow on the carbon. Rather than the carbon being clog with a film of growth in less than 7 days now takes more than 14.
What I use is 100% poly filter material that comes in mats. I cut it to size, roll it up and place it in the first chamber.
I rinse the ROX by letting it run through about a 1/4-1/2 gallon of water before placing the output back to the sump and it runs beautiful for weeks instead of days.
Do you have any pictures of how you have it set up, just curious?
Which website did you buy the poly fiber from?I’ll try, my phone camera doesn’t work too well anymore.
It’s just placing a good roll of poly fiber where the GFO would go in a BRS dual reactor.
A very good question.....I'm sure Randy can explain, but what is the reason there's a suggested amount of carbon per gallon? Can you really use too much? I understand too little would exhaust quickly, but what's the problem with using too much?
Melev's reef explained in similar fashion on a video he made in you tube which I just watched.If you use large amounts of carbon changed every 6-8 weeks there will be times the water is very clean, event maybe some foods removed. Then times when the water starts getting dirty. This isn’t stable and personnel I like to keep things as stable and consistent as possible.
It has been observed that corals react negatively when a large amount of activated carbon is suddenly added after long periods of time not using any or no water changes.
I don’t use a lot because I feel that carbon is very quickly clogged in a reactor or bag and after just a few days loses its filtering power. This is especially true for anyone who adds/doses organic carbon. Small amounts of ROX goes a long way! I use only about 1-1.5 cups per 1-3 weeks depending water changes, water color and smell.
A good way to test water color is fill a very clean and white bucket with tank water. Fresh clean water should be colorless almost blue. My water is almost perfectly colorless after using ROX. I’m am willing to bet anyone waiting to change carbon after 4 weeks starts to have yellow water, with no or small water changes.
Using more doesn’t mean it will last longer. No matter how much you use it will clog and get covered in a biofilm. In my system this takes about 2 weeks and then I can see it starts to get clogged. Used to be 1 weeks before I added the prefilter. In your system could be longer or shorter. Best way to know is test the water color like I just explained.
You can just put it in your filter sock in a pinch but it’s much more effective in a reactor.Hey guys is it necessary to run ROX carbon in a reactor or can you place it in a bag in the sump with flow or maybe a media cup ? I know reactor would be ideal
I'm sure Randy can explain, but what is the reason there's a suggested amount of carbon per gallon? Can you really use too much? I understand too little would exhaust quickly, but what's the problem with using too much?
Yes. There have been quite a number of people over the years who have had mass bleaching events associated with carbon start up. IMO for the first time, use a very small ammount of carbon, like 1/2 cup per 100 gal and run it for 6 -12 hrs and wait a few days, observe, do the same again. If you have a bleaching event it can take months to recover so go slow.There are some risks when first starting GAC in that the water may suddenly become less yellow and more able to be penetrated by blue and UV light, which might light shock corals.
Does that trap a lot of the dust, do you recommend the 50 or 100 micron socks, which is more successful for you??
You can just put it in your filter sock in a pinch but it’s much more effective in a reactor.
Use a sock if you re treating some acute event and don’t have a reactor.
If you are choosing to “run GAC” full time, then the cost of a reactor will be quickly offset by the increased efficiently of using the reactor and less GAC to buy.
Which website did you buy the poly fiber from?