Guides

Draw an aquarium Secret Fish Guide

Understand SECRET rarity, badge odds near 0.2%, and the luck grind that makes ultra-rares realistic.

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How to Get Secret Fish

SECRET is the top rarity tier in Draw an aquarium. Landing one is a flex, a badge chase, and usually a massive income upgrade for your tank. Community badge stats put Secret Fish ownership around ~0.2% of players—orders of magnitude rarer than Legendary Catch (56.9%) or even Rainbow Fish (4.3%). This guide explains what SECRET actually is, how luck and drawing habits interact with the roll, and how to hunt without wrecking your economy.

New players should finish Getting Started and build a full tank using Make Money Fast before hard-focusing SECRET. You need cash flow to keep redrawing and to buy luck upgrades that tilt the table.

What SECRET means in this game

After you draw a fish, add eyes, and name it, the game rolls rarity:

Common → Rare → Epic → Legendary → Mythic → SECRET

Separately, a fish may receive a mutation: Gold, Diamond, or Rainbow. SECRET is the rarity label; Rainbow is a mutation (and a different badge). Do not confuse the two when reading rarities versus mutations on the tier list.

A SECRET fish that also mutates is the dream stack—treat it as lottery-on-lottery, not a planning assumption.

Badge reality check

Approximate badge ownership rates help set expectations:

BadgeApprox. rateNotes
My First FishVery commonCompleting the first creation
MasterpieceSkill-gatedRequires a 5-star fish
Legendary Catch~56.9%Many players see Legendary
Rainbow Fish~4.3%Mutation badge
Secret Fish~0.2%Ultra-rare rarity badge

Rates shift as the player base grows and patches land—confirm spikes on updates and the Roblox badge page via links.

What you can control vs what you cannot

You can control

  • How often you finish valid fish (volume of rolls).
  • Luck upgrade level.
  • Tank income that funds more draws and upgrades.
  • Drawing quality so keepers are worth slotting when rares hit (see 5-Star Fish).
  • Using codes that grant luck or cash boosts when available.

You cannot control

  • A guaranteed SECRET on a given draw.
  • Exact pity timers (none are publicly documented as hard guarantees).
  • Other players’ luck in your 7-player server.

Mindset: SECRET is a long-horizon project funded by a healthy aquarium, not a tutorial checkbox.

Luck upgrades are the main lever

Luck improves the distribution of rarity and mutation outcomes on new fish. Priority order for most hunters:

  1. Fill tank capacity so income is maximised (empty slots sabotage the grind).
  2. Buy impactful decorations that boost money—guide: Decorations.
  3. Pour surplus into luck relentlessly.
  4. Keep redrawing with clean, fast fish so you generate rolls without burning out.

If your tank is half empty, stop “luck only” thinking and fix capacity first. Make Money Fast covers the upgrade sequence in depth.

Drawing habits that help the hunt

SECRET is a roll, but poor drawings waste the attempt psychologically and economically if you feel forced to keep junk. Aim for:

  • Fast, neat silhouettes you can finish in under two minutes.
  • Reliable eyes and names so submissions never fail UI checks.
  • Occasional Masterpiece attempts so you progress the Masterpiece badge in parallel.
  • Immediate replacement of weak tank fish when a high rarity lands.

A clean Common still beats an empty slot. A SECRET with terrible stars is still a trophy—slot it and keep grinding cosmetics of quality later if needed.

Session structure for SECRET hunting

  1. Redeem codes and activate any luck-related rewards.
  2. Check updates for event multipliers.
  3. Confirm every tank slot is filled with your best earners (tier list).
  4. Spend available cash into luck (or capacity/decor if those are behind).
  5. Run focused draw batches—10 to 20 fish—then review upgrades again.
  6. Log notable hits (Mythic, Rainbow mutation, SECRET) so you notice streaks.

Short batches prevent tilt. If you feel forced to scribble garbage, take a break; volume only helps when you keep submitting complete fish.

Mutations while hunting SECRET

Do not discard excitement for Gold, Diamond, or Rainbow just because they are not SECRET. Rainbow’s badge rate (~4.3%) shows mutations are rare enough to celebrate. A Rainbow Legendary can out-earn a plain Mythic depending on balancing—verify on mutations and your live income ticks.

Common SECRET myths

  • “You must draw a specific shape.” No public evidence that one silhouette guarantees SECRET. Focus on valid, complete fish and luck.
  • “SECRET only drops at night / in empty servers.” Treat time-of-day claims as unverified unless developers confirm them on updates.
  • “Masterpiece guarantees SECRET.” Stars and rarity are separate systems.
  • “Scripts make SECRET free.” Anything that touches clients can risk your account—read scripts critically and prefer legitimate grind loops.

Parallel goals so the hunt feels productive

While waiting on 0.2%-class luck:

  • Finish Masterpiece via 5-Star Fish.
  • Max early decorations for income.
  • Climb the visible rarity ladder (Legendary → Mythic) so the tank looks and pays better.
  • Track badge progress against friends using players style roster notes if you collect showcases.
  • Use tools if probability or income calculators appear for this experience.

When you finally roll SECRET

  1. Slot it immediately—never leave it undeployed.
  2. Screenshot for the flex; share links from the links hub if you post guides.
  3. Re-evaluate which low earners to drop.
  4. Keep buying luck; one SECRET does not end the collection fantasy if more exist or mutations can stack.
  5. Return to normal economy optimisation so the aquarium stays efficient.

Safety and fairness

Play on the official Roblox place by SanderManderen. Avoid account-sharing “secret methods” sold on shady discords. Prefer this wiki’s Guides Hub, codes, and updates over random leaked sheets.

SECRET fish are rare by design. Build a tank that prints money, raise luck, draw complete fish in batches, and treat the badge as a marathon. When it hits, your aquarium—and your badge shelf—will show the work.

FAQ

Frequently Asked Questions

Quick answers for Draw an aquarium on Roblox.

How rare is the Secret Fish badge?

Community figures sit near 0.2% of players—far rarer than Legendary Catch (~56.9%) or Rainbow Fish (~4.3%). Exact live rates can drift as more people join.

Does luck guarantee a SECRET fish?

No. Luck improves your odds on rarity and mutation rolls but does not remove randomness. Keep upgrading luck while maintaining a full, earning tank.

Is Rainbow the same as SECRET?

No. SECRET is a rarity tier. Rainbow is a mutation (with its own badge). You can theoretically have both on one fish, but that is extremely uncommon.

Should beginners hunt SECRET immediately?

Not as a primary goal. Fill capacity, learn 5-star drawing, and establish income first. Then funnel surplus into luck and high-volume draws.

Do I need a perfect drawing to roll SECRET?

Rarity is rolled after creation; stars grade art quality separately. Still submit complete fish with eyes and names so attempts count and keepers are worth displaying.