How Do I Pick Up Coral and Algae in REEFSCAPE℠?

The Game Pieces this year are wildly different. Luckily, our engineers have some observations and advice for handling this challenge.
PRODUCTS USED:
Algae REEFSCAPE℠ Game Piece (am-5602)
www.andymark.c...
Coral REEFSCAPE℠ Game Piece (am-5601)
www.andymark.c...
AndyMark 775 RedLine Motor (am-3775a_16t)
www.andymark.c...
35A 4 in. Compliant Wheel (am-3480_green)
www.andymark.c...
35A 3 in. Compliant Wheel (am-3946_green)
www.andymark.c...
3/8 in. OD Black Surgical Tubing (am-3581)
www.andymark.c...
Robits 20 DP Gears (am-5020)
www.andymark.c...
9 mm Wide 5 mm Pitch HTD Timing Belt (am-5209)
www.andymark.c...
Music: Newer Wave by Kevin MacLeod
incompetech.fi...
License: filmmusic.io/s...
For more information, visit
www.andymark.com/

[@mr.branting7833]

Is there a more specific list of parts, including all the attachments, for this pickup? I wanted to know more specifics, like what exactly to order. Please let me know. Thanks.

[@emanawesome2464]

How long are those poles that the wheels are attached to?

[@AndyMark]

Those are 8 in. long, 1x1 in. Profile Robits tubes. www.andymark.com/products/robits-tubes?sku=am-5002-0800

[@emanawesome2464]

What about gear sizes?