Standard
Kay Sen
Maintenance technician
Reliable, scheduled care — your tank kept healthy and pristine on a rhythm that suits you.
from $148 / session
Aquarium care, done properly
Professional aquarium maintenance, from $148 a session.
Transparent pricing by tank size, cared for by two technicians you’ll get to know by name. Book a one-time visit or subscribe for a healthier tank and rewards on everything you buy.
- Two named technicians — never a rotating crew
- Transparent pricing by tank size
- Full water-quality panel every visit
Two technicians, one standard of care
Not a rotating crew — you’re looked after by a name you’ll recognise each visit.
Standard
Premium
Eugene
Founder & lead technician · 20 years’ experience
Two decades hands-on with planted tanks and delicate livestock. For prized aquascapes and demanding setups that deserve the most experienced hands.
Premium service — price on enquiry
How it works
From measuring your tank to the visit itself — a simple journey, with the same technician each time.
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Measure & price
Enter your tank’s length, width and height in centimetres to see an instant per-session price on the page.
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Book or subscribe
Choose a one-time visit or a subscription; Yumi sends your full quote and helps you pick a date over WhatsApp.
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We visit
Your named technician handles the water change, aquascape trim, cleaning, water testing, filter maintenance and a livestock health check.
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After the session
Get advice you can act on, support between visits, and — on a subscription — loyalty rewards that build toward a free 11th session.
How big is your tank?
You don’t need to know your litres — just measure three sides and we’ll do the rest.
Measure in centimetres. Length × Width × Height ÷ 1000 = your litres — the calculator below does it for you.
Small
nano & desktop tanks
$148 / session
Medium
the typical living-room tank
$178–$208 / session
Large
feature & display tanks
$238–$268 / session
Get your instant quote
Pop in your tank size and details — we’ll show your price right away, and Yumi will WhatsApp you a full quote and help schedule a maintenance date.
Your tank is about litres — a large setup we’ll tailor for you.
/ session
Done! Yumi will WhatsApp you your full quote and confirm a date shortly.
Prefer to chat first? Message Yumi now
Every price is per session. Yumi sends your full quote on WhatsApp and helps you schedule; card & BNPL checkout adds a 3.5% processing fee. Tanks over 550 litres are quoted individually.
One-time visit or subscription?
Same named technician and the same session either way — here’s what changes when you commit to a plan.
| Feature | One-time visit | Subscription |
|---|---|---|
| How you pay | Pay per visit, as booked | Recurring per session |
| Store-wide 5% off | — | Automatic on every product |
| Plan savings | — | Bi-weekly 20%, plus annual & prepay options |
| Commitment | None — book as needed | Ongoing, regular visits |
| Best for | A one-off tidy-up or first visit | Consistent long-term care |
What every session includes
Water change
A partial water change sized to your tank and stock.
Aquascape tidy
Trim, prune and neaten plants and hardscape.
Substrate & glass cleaning
Clean front and side glass; light substrate vacuum.
Water quality testing
pH, GH, KH, ammonia, nitrite and nitrate checked.
Livestock health check
Visual inspection of fish and plants, with advice.
Filter maintenance
Media rinsed or cleaned at least once a month.
Customer support
Answers to your maintenance questions between visits.
Not included
- Livestock loss — we take every care, but fish health depends on many factors outside a scheduled visit.
- Equipment failure outside its warranty — we’ll flag a fault and advise; parts/repair are billed separately.
- New consumables — food, filter media, medication, conditioners and the like are charged as used.
- Out-of-scope work — emergency call-outs, major tank moves or full redesigns are quoted separately.
Rewards for regulars
The more we care for your tank, the more you save.
11th session free
Every 10 completed sessions, your next one is on us.
Bi-weekly plan
Commit to a fortnightly rhythm and save 20%.
Prepay in bulk
Pay for a block of visits up front and save 5%.
Annual plan
5% off every session, plus 10% off consumables — carbon, food, meds, conditioners and fertilisers — delivered during your visit.
Subscribers save 5% on everything
While your maintenance subscription is active, you get an automatic 5% off every product across our store — plants, livestock, equipment and consumables.
Maintenance FAQ
The questions Singapore aquarium owners ask us before booking.
Can I book a one-time visit, or do I have to subscribe?
Both work. You can book a single one-time session whenever your tank needs attention, or set up a subscription for regular visits at a lower effective rate. There’s no obligation to subscribe to book your first visit.
How is the price worked out from my tank size?
Enter your tank’s length, width and height in centimetres and the page shows an instant per-session price based on your water volume. Larger tanks sit in higher price bands; tanks over roughly 550 litres get an individual custom quote. Every price shown is per session.
What does a maintenance session actually cover?
Each session includes a partial water change sized to your tank and stock, an aquascape trim and tidy, substrate and glass cleaning, a full water-quality test (pH, GH, KH, ammonia, nitrite and nitrate) and a livestock health check with advice. Filter media is rinsed or cleaned at least monthly, and you get support between visits.
Are consumables like food, media and medications included?
No. New consumables such as food, filter media, medications and water conditioners are charged only as they’re used, and any equipment parts are billed separately. We’ll always flag what’s needed and advise before anything is added.
Who actually comes to my tank each visit?
The same named technician every time, not a rotating crew. Standard sessions are handled by Kay Sen, our maintenance technician; for prized or demanding setups, our Premium tier brings Eugene, Gensou’s founder and lead technician with 20 years’ experience.
Does an active subscription really give me 5% off the whole store?
Yes. While your maintenance subscription is active, you automatically get 5% off every product in the Gensou store — plants, livestock, equipment and consumables. Subscription plans unlock further savings too, such as 20% off on the bi-weekly plan, annual and prepay options, and a free 11th session after every 10 completed visits.
Which areas in Singapore do you cover?
We serve aquarium owners across Singapore. Once you send your details on WhatsApp, Yumi will confirm your location is covered before anything is scheduled.
What if I need to reschedule or cancel a session?
Just let us know on WhatsApp and we’ll help you find another suitable date. Please give us as much notice as you can so we can adjust the schedule.
Do I need to be home, and do you bring your own tools?
We’ll agree access arrangements with you when scheduling, so let us know whether you’ll be home or prefer another arrangement. Yumi will confirm what to expect on tools and water for your visit.
Ready for a healthier tank?
Book a one-time visit or start a subscription. Tell us your tank size and we’ll take it from there.
Credit card & BNPL accepted (3.5% processing fee).