Hallowhead
NJRC Member
Already have that running.For that size tank you can use
Chemi pure blue
It has carbon and resin mixed
Boyd Enterprises Chemi-Pure Blue Nano Five-Pack, 110 Grams Total (1) https://www.amazon.com/dp/B013IPLPWU/ref=cm_sw_r_cp_api_glt_fabc_MKVYH51KK22SVC6EX558
I'm adding purigen to see if it helps while I wait for a carbon reactor to go on sale or show up for sale on here