To get rainbows in Fisch on Roblox , you usually need to trigger the Rainbow weather/event first, then fish in the area where it appears. The guides I found say it can happen naturally after certain weather patterns, or you can force it with items like a Sundial Totem or a Weather Matrix if you have them.

What players are doing

  • Some players use a Sundial Totem to help push the game into the right weather state, then wait for a rainbow event to appear.
  • Others use the Weather Matrix , which can roll random weather events and sometimes causes a rainbow event.
  • When the rainbow event starts, people head to Castaway Cliffs or another known rainbow spawn area and fish there.

If you mean Rainbow Totem

If you meant the Rainbow Totem instead of the weather event, the sources say it comes from Angler quests with a small chance as a reward. The quest loop is basically: find the Angler NPC, complete the fishing request, turn it in, and repeat until the rare drop appears.

Fastest practical route

  1. Check whether you want the rainbow weather or the Rainbow Totem.
  2. For rainbow weather, try using a Sundial Totem or Weather Matrix.
  1. For the Rainbow Totem, grind Angler quests repeatedly.
  1. If you’re after the rainbow-event fish/rod, go to the known rainbow spawn spot once the event starts.

Tiny note

Because a lot of the info is coming from recent community guides, the exact method can shift after updates, so the safest answer is: use Angler quests for the Rainbow Totem, and use weather-changing items plus the right location for rainbow weather.

Would you like the steps specifically for the Rainbow Totem or the rainbow weather event?