Is just PLAY SAND a reasonable substrate?
I will be running co2 and an XP3 with 2-4 T5HO (54w 10,000k) in a 90G.
Mainly just community fish, amano shirmps, and lots of plants..Vals, swords, anubias.. + +
Is POOL FILTER SAND better?
Please don't hold back, all thoughts are helpful.