In a few a months, I'm going to start building a 900 gallon 8x5x3 plywood tank, and I'm considering using this opportunity to build the tank to specification and obtain a restricted species permit to own a ray. I'm looking into a Motoro, as I've read they're the most hardy and best beginner ray, but I have a few questions as to how to best keep them.
For filtration, I plan to have a pool filter, diatomaceous earth filter, and sump connected in series with a jabeo dct 20000 pump, as well as some form of nitrate reduction filter (denitrification filter, algae scrubber, nitrate reactor). Will this work, or is there a different method I should consider that would work better?
What water parameters (specifically nitrates) are needed to keep a Motoro ray, and what is the best/easiest way to maintain these conditions?
Will my current stock list work with a Motoro ray? If not, can I address it with decor or dithers, or will I need to remove certain fish?
Current stock:
Parachromis Motaguensis ~12-14"
Vieja Guttulatus ~12"
King Kong Blood Parrot 8"
2x Severum 6" and 8"
Firemouth 4"
Electric Blue Acara 4"
Angelfish 3-4"
Polypterus Teugelsi 14"
Polypterus Ornatipinnis 12"
Polypterus Lapradei Koliba 10"
Rope fish 12"
Papyrocranus Afer 12"
Sun Cat 8"
Synodontis Eupterus 8"
Hypostomus Plecostomus 16"
Brachyplatystoma Tigrinum 16"
2x Gymnothorax Polyuranodon 12" and 24"
Though motaguensis have a reputation for being quite aggressive, mine is quite docile, and I doubt he will cause a problem. I've had him for two or three years, and he still will often hide when I walk up to the tank.
For filtration, I plan to have a pool filter, diatomaceous earth filter, and sump connected in series with a jabeo dct 20000 pump, as well as some form of nitrate reduction filter (denitrification filter, algae scrubber, nitrate reactor). Will this work, or is there a different method I should consider that would work better?
What water parameters (specifically nitrates) are needed to keep a Motoro ray, and what is the best/easiest way to maintain these conditions?
Will my current stock list work with a Motoro ray? If not, can I address it with decor or dithers, or will I need to remove certain fish?
Current stock:
Parachromis Motaguensis ~12-14"
Vieja Guttulatus ~12"
King Kong Blood Parrot 8"
2x Severum 6" and 8"
Firemouth 4"
Electric Blue Acara 4"
Angelfish 3-4"
Polypterus Teugelsi 14"
Polypterus Ornatipinnis 12"
Polypterus Lapradei Koliba 10"
Rope fish 12"
Papyrocranus Afer 12"
Sun Cat 8"
Synodontis Eupterus 8"
Hypostomus Plecostomus 16"
Brachyplatystoma Tigrinum 16"
2x Gymnothorax Polyuranodon 12" and 24"
Though motaguensis have a reputation for being quite aggressive, mine is quite docile, and I doubt he will cause a problem. I've had him for two or three years, and he still will often hide when I walk up to the tank.

