septembersapphire21 wrote: ↑Sun Jun 13, 2021 4:51 pm
Where do I get the silica sand top-dressing? And what brand do you recommend? My VFTs are small but have been growing great with no problems, I just hope I'm not too late saving them because Idk how much algae is growing under.
You can use Marble or Granite aquarium gravel from your local pet shop.
You can also use pool filter sand from your big box building supply store or pool/spa store.
Pool filter sand usually is sold in a 25 or 50 pound bag bag for $20 or less.
I usually rinse it first.
Then I sprinkle on a few drops of vinegar.
If the vinegar starts bubbling, rinse it again and try the vinegar test again.