Siamese Algae Eater tank mates
Crossocheilus oblongus
5 rated pairings from the Siamese Algae Eater care guide. Compatibility here means water, temperament, tank zone and adult size all line up — the note on each card says why. Siamese Algae Eater needs at least 30 gallons on its own; every companion adds to that.
Excellent matches
2 · Same water, complementary zones, no conflict.
Emerald Dwarf Rasbora
Danio erythromicron
10 gal min · 1" adult · Peaceful
Small, peaceful schooling fish with identical water parameter requirements and non-aggressive behavior
Rummy Nose Tetra
Hemigrammus rhodostomus
15 gal min · 2" adult · Peaceful
Peaceful community fish that occupy mid-water zones, avoiding competition with bottom-dwelling algae eaters
Good matches
2 · Compatible with normal care — watch space and numbers.
Otocinclus
Otocinclus vittatus
10 gal min · 1.5" adult · Peaceful
Similar algae-eating habits and peaceful temperament; may compete for food but generally compatible
Dwarf Gourami
Trichogaster lalius
15 gal min · 3.5" adult · Semi-aggressive
Peaceful mid-water dweller with overlapping temperature range; minimal territorial conflict
Use caution
1 · Works in the right setup; read the note before combining.
Also recommended alongside Siamese Algae Eater
Species whose own guides list Siamese Algae Eater as a tank mate.
Arulius Barb
Dawkinsia arulius
55 gal min · 5" adult · Semi-aggressive
Harlequin Shark
Labeo cyclorhynchus
55 gal min · 6" adult · Semi-aggressive
Hora's Loach
Yasuhikotakia morleti
30 gal min · 4" adult · Semi-aggressive
Melon Barb
Haludaria fasciata
30 gal min · 3" adult · Semi-aggressive
Redtail Botia
Yasuhikotakia modesta
75 gal min · 5" adult · Semi-aggressive
Silver Flying Fox
Crossocheilus reticulatus
55 gal min · 5" adult · Semi-aggressive
Planning this tank?
Run the whole stock list through the calculator — it checks bioload and schooling numbers, not just pairings.