Stephens Plant Tank II... comments welcome
> From: mark.stephens at gsfc_nasa.gov (mark stephens)
> 5) Wash all the gravel (a definite July/August activity), use Dupla
> laterrite again. I'm up for other additives but the threads on vermiculite
> et. al. seem a tad unsettled yet.
A word of warning - it's very difficult to get all the laterite washed
out of the gravel. I tried this when I redid our 100g tank a year
ago. I washed it all, then mixed new laterite in the lower 1/3. The
problem was that the top 2/3 still had enough laterite to cloud the
water for two weeks. Unlike my usual experience with Dupla laterite,
it didn't seem to settle out this time.
Save yourself a lot of trouble and get new gravel for the top layer.