is carbon really bad for arrowana
- Thread starter Brent
- Start date
a better question... is there any reason to use it in your tank other than for medication removal? theres not really any reason to use it 24/7.. nobody has "proven" its harmfulness but better to err on the side of caution IMO 
What happens if carbon is left in the filtration system too long? I've been looking at a few large tanks and ponds this week. I'm getting ideas for my future arowana tank/pond. Many don't use carbon, but have a place for it incase medication is needed. Seems most use bio balls, ceramic rings, black bio mesh of sorts, and a floss or polishing pad. Cleaning is done with tank water only to minimize bio loss. I replace carbon every month, but it seems that is a waste of money.
ive beenkeeping fish for a long time never had issues with it doing anything negative even if left in the system for extended periods ....my buddy having issues witha few rays and i told him to use carbon incase there evtera chlorine or extra chemicals in the tap water due to the heat lately and he said he heard its bad for arroana s causes hole in the head thats why im trippin a little i have arros but havnt noticed anything wondering if anyone else has?......... carbon works great for my house theres no chlorine in the water and the water taste sweet i dont use any water conditioners prime etc......
I'm interested in this. I'm going to change my set up to include an automatic WC system. Nothing fancy, just outlet to the drain and inlet from the water pipe. I am going to run the water though a filter first, i've been looking at carbon filters. It will only change about 10ltr an hour (or less). I don't want to cause any problems for my soon to purchase RTG. The whole idea is to run my set up as cleanly as possible, i'm still gutted after the death of my last RTG so i don't want any repeats.
Carbon removes a whole bunch of organic and inorganic compounds if I remember correctly, hence why it can be used to remove medication. The downside to carbon is, once it has "absorbed" enough of these harmful chemicals, it begins to release them back in the water. If you don't change it or just leave it in there for too long, then everything the carbon has absorbed just goes straight back in your water. Like BDerick said, it's not really necessary but it's a good bonus if you maintain it properly.