GPT has helped my 150g with a heavy stock. They're all playing nice.
I Copy & pasted your list and asked for order of introduction:
Stage 1: Peaceful and Shy Fish First (weeks 1–2)
These need time to settle before bigger personalities show up.
- Oreni Tilefish – Easily stressed, needs stable conditions and a calm tank initially.
- McCosker’s Flasher Wrasse – Peaceful, needs time to establish and won't compete well in early chaos.
- Pipefish or Dragonet – Need mature pods and very low aggression.
- Blue Dot Jawfish – Shy, burrower, does better when added before floor space is claimed.
- Bicolor or Midas Blenny – Peaceful, gets territorial later, so better early.
Notes:
- Make sure the tank is mature enough for pod-feeders.
- Use a mesh lid—jawfish, tilefish, and wrasses are expert jumpers.
- Establish caves and sand zones early for jawfish and tilefish.
Stage 2: Hardy Community Fish (weeks 3–5)
These are peaceful to semi-aggressive but adapt easily and won’t bully new arrivals.
- Coral Beauty – Often reef-safe-ish; can be nippy later, so add mid-stage.
- Foxface Rabbitfish – Peaceful and helpful with algae, but has venomous spines—handle with care.
- Earmuff Wrasse – Active swimmer, reef-safe, and not aggressive early on.
- Copperband Butterfly – Delicate, needs a settled tank and no aggressive eaters to outcompete it.
- Marine Betta – Cryptic and slow eater, benefits from a calmer setup before tangs go in.
Notes:
- Feed a variety of frozen and live foods to entice Copperband.
- Marine Betta may eat small ornamental shrimp but usually stays shy.
Stage 3: Mid-Aggression & Space Claimers (weeks 6–8)
These fish need space and begin establishing zones.
- Harlequin Tusk – Semi-aggressive, but generally reef-safe. Don't add late or it’ll boss others.
- Boxfish – Peaceful but delicate; toxin risk if stressed or dies. Add after flow and tankmates stabilize.
- Midas Blenny (if not added earlier) – Gets pushy later, better mid-way.
Notes:
- Be cautious with Boxfish—run carbon always and maintain pristine water.
- Tusk may eat snails/crabs, so plan your cleanup crew accordingly.
Stage 4: Tangs in Order of Aggression (weeks 8–10)
Add them
least aggressive to most aggressive, ideally all close together to reduce territory issues.
- Lieutenant Tang – Generally peaceful for a tang, large swimmer.
- Blue Hippo Tang – Can be shy; prone to ich, so quarantine carefully.
- Gem Tang – Assertive, but often okay if added before more dominant tangs.
- Purple Tang – Territorial and feisty, especially toward similar body shapes.
- Achilles Tang / Powder Tang – Very aggressive, ich-prone, and active swimmers.
Notes:
- Use an acclimation box if needed to reduce fights.
- Consider adding tangs simultaneously or with minimal time between them to even the odds.
- Have seaweed clips at both ends of the tank to reduce resource guarding.
General Stocking Tips:
Quarantine everything – Especially tangs, Copperband, and boxfish. Ich is a major concern with this mix.
Add similar species at the same time – Helps spread aggression.
Feed heavily during intro weeks – Keeps aggression down.
Plenty of rockwork and hiding – Break line of sight and create zones.
Carbon and UV – Help reduce toxin/parasite risks (Boxfish + tangs).
Auto-feeder or regular feeding – Multiple small feedings helps calm fish.
