I've only repicked up my auqarium hobby about 8 months ago (since going 20 years or so without). So, I'm rusty and in relative measures really still a novice.
So, here is my question.....can I use my spent carbon as a substrate (or rather as a biological filter). I was thinking of putting the spent carbon in an old (but clean) peanut butter jar and drilling some holes into the plastic cover and setting it in my sump. Maybe cover it with nylon in case the holes are too big to keep the carbon in the jar.
Here's my tank...125g freshwater with a 25g sump. Ammonia - 0, Nitrite - 0, Nitrate - 40ppm, PH 7.5. I'm already running two filstar XP3's (the usual media plus Purigen) out of the sump. In the sump I have an ATS and Java moss growing...and some surprise snails that must have come with the Java moss. Obviously, the spent carbon peanut butter jar diy is for the nitrates.
In the display tank...3 silver dollars, 9 glowlight tetras, 2 siamese algae eaters, 10 endler's and fancy guppies and 3 borneo suckers (Hillstream loahces).
Sorry if the question has come up before, but I didn't see it in my searches on the topic.
thanks
Michael
So, here is my question.....can I use my spent carbon as a substrate (or rather as a biological filter). I was thinking of putting the spent carbon in an old (but clean) peanut butter jar and drilling some holes into the plastic cover and setting it in my sump. Maybe cover it with nylon in case the holes are too big to keep the carbon in the jar.
Here's my tank...125g freshwater with a 25g sump. Ammonia - 0, Nitrite - 0, Nitrate - 40ppm, PH 7.5. I'm already running two filstar XP3's (the usual media plus Purigen) out of the sump. In the sump I have an ATS and Java moss growing...and some surprise snails that must have come with the Java moss. Obviously, the spent carbon peanut butter jar diy is for the nitrates.
In the display tank...3 silver dollars, 9 glowlight tetras, 2 siamese algae eaters, 10 endler's and fancy guppies and 3 borneo suckers (Hillstream loahces).
Sorry if the question has come up before, but I didn't see it in my searches on the topic.
thanks
Michael
