Lamarck's Angelfish (Genicanthus Lamarkki)
Also Known As: Lamarck's Swallowtail Angel
Compatibility and Behavior
Lamarck's Angel occupies a pretty unique niche among angelfish: it's genuinely reef safe, peaceful, and can be kept in pairs or small harems, which isn't something you can say about many fish in this family. They feature a clean silvery-white to pale gray body with bold black horizontal stripes along the flanks and a distinctive freckled lyretail caudal fin, with subtle blue edging on the dorsal and tail that shows up nicely under reef lighting. Because Lamarck's Angels feed primarily from the water column rather than picking at rock and coral, they tend to leave corals alone and generally make excellent citizens in SPS and mixed reef systems. Individual behavior can always vary, but this species has a well-earned reputation as one of the most trustworthy reef-safe angelfish options in the hobby.
Aquarium Requirements
Lamarck's Angels are active, open-water swimmers that need room to move. A 90 gallon tank is the practical minimum for Sm/Md specimens, and the layout matters as much as the size. They do best with generous horizontal swimming space and open, airy rockwork rather than tight, enclosed caves. Ledges and crevices are still useful for retreating and sleeping, but the overall feel of the tank should favor open water over dense structure. Flow should be strong but varied, mimicking the reef slopes and drop-offs where this species naturally cruises. A tight-fitting lid is a good idea. Like most active planktivores, they can jump when startled. Feed small and often, focusing on meaty planktonic foods like mysis, enriched brine shrimp, finely chopped seafood, and quality marine pellets, with some algae-based fare mixed in to round out the diet.
Specifications
Approximate Size: Sm/Md: 1.5-2.5", Lg: 3-4"
Diet: Omnivore; planktivorous, small meaty foods, quality pellets, some algae-based foods
Origin: Indo-West Pacific
Care Level: Moderate
Reef Safe: Yes; one of the most reliable reef-safe angelfish options when kept well fed
Temperament: Peaceful; can be kept in harems, but avoid multiple males in smaller tanks
Minimum Tank Size: 120 gallons
Special Considerations: Requires a tight-fitting lid; benefits from frequent small feedings of planktonic foods; an excellent choice for SPS and mixed reef systems
Pairs well with
Lamarck's Angelfish (Genicanthus Lamarkki)
If you have any questions, you are always welcome to contact us. We look forward to hearing from you!
-
Shipping Information
- Our shipping days are Monday-Thursday. Orders will be shipped overnight on the soonest possible shipping day, unless you request to hold the order for up to one business day.
- Your order will ship same-day if placed before 12:30 PM PST on a shipping day.
- Orders placed after 12:30 PM PST will ship on the next shipping day.
- Stay tuned to our Announcement Bar (black bar at the top of every page) for important shipping announcements...we may reach our max limit of orders we can ship on Mondays.
- If it is very hot, very cold, or if you live in a rural area, ship to a UPS Access Point to save your livestock from hours of exposure to the elements. Click here to see how.
-
FAQ’s
When will you ship my order?
We will ship on the soonest possible shipping day. Our shipping days are Monday-Thursday, and we ship same-day if the order is placed before 12:30 PM PST (unless announced otherwise). For example, if ordering at 1 PM on Thursday, your order will ship the following Monday.
Can you hold my order until next week?
Unfortunately not. We can hold items for up to one business day before shipping. We restock weekly, so chances are good we will receive more by next week!
When is the best time to order?
Saturdays and Sundays are the absolute best time to order, followed by Wednesday evenings. The closer you order to an inventory update, the better the available inventory.
What happens if something I ordered is unavailable?
We will email you to request a substitution. If you would like your original order, chances are good that it will be available to ship within the week (unless it is a very rare item).
Can I modify my order once it has been placed?
This is possible, but not guaranteed. Please email us if you need to modify your order or shipping address, and we will gladly make the changes for you, or let you know if it is too late.
What should I do if UPS is unreliable in my area?
We recommend shipping to a UPS Access Point, as packages get delivered there first before trucks go on residential deliveries. Click here to see how.
What salinity do you ship at?
Salinity for fish is 1.018-9. Salinity for inverts is 1.024-5.
-
Contact Us
Send us an email at sales@reefbeauties.com and we will get back to you shortly.
We do not offer phone calls. We handle our inquiries with timely emails to ensure a qualified and high-quality response, to have all conversations on record, and to avoid miscommunications that can occur over the phone.
Free shipping on orders over $199!
FAQs
Frequently Asked Questions
When will you ship my order?
We will ship on the soonest possible shipping day. Our shipping days are Monday-Thursday, and we ship same-day if the order is placed before 12:30 PM PST (unless announced otherwise). For example, if ordering at 1 PM on Thursday, your order will ship the following Monday.
Can you hold my order until next week?
Unfortunately not. We can hold items for up to one business day before shipping. We restock weekly, so chances are good we will receive more by next week!
When is the best time to order?
Saturdays and Sundays are the absolute best time to order, followed by Wednesday evenings. The closer you order to an inventory update, the better the available inventory.
What happens if something I ordered is unavailable?
We will email you to request a substitution. If you would like your original order, chances are good that it will be available to ship within the week (unless it is a very rare item).
Can I modify my order once it has been placed?
This is possible, but not guaranteed. Please email us if you need to modify your order or shipping address, and we will gladly make the changes for you, or let you know if it is too late.
What should I do if FedEx is unreliable in my area?
We recommend shipping to a FedEx Ship Center, as packages get delivered there first before trucks go on residential deliveries. Click here to see how.
What salinity do you ship at?
Salinity for fish is 1.018-9. Salinity for inverts is 1.024-5.