I have some hard to reach areas with couple dead snail shells lingering underneath the main rock structure, it's impossible to take them out by hand without pulling out the whole rockwork and it's blocking pathways for the snails and fish to go through, does anyone have any DIY tools/ideas that can reach in there to grab the shells at different angles like at 90 degree? I have may to pull out the rocks to get to it, just seeing if there's any ideas out there before I do this.