Hey folks,
I'm worried about my yellow dotty back. He has a large black spot/mass under his belly just infant of the anal fin. He is the newest addition to my tank (around 6 weeks ago) and this is the first time I have noticed. It looks like it could be an injury but I'm hoping someone can advise if this is a common illness? The mark is jet black.
Reef tank and corals. 2 Clown Fish, 4 Chromis, Yellow Dottyback, Scooter Dragonette. 200litres. some inverts. 15% wc weekly, dose with calc and alkalinity. Sump underneath with refug for copepods.
ALK 120, CALC 400, AMM 0, NITRITE 0, NITRATE 0, PH 8.2, DO 9.5. The tank is a year old.
I'm worried about my yellow dotty back. He has a large black spot/mass under his belly just infant of the anal fin. He is the newest addition to my tank (around 6 weeks ago) and this is the first time I have noticed. It looks like it could be an injury but I'm hoping someone can advise if this is a common illness? The mark is jet black.
Reef tank and corals. 2 Clown Fish, 4 Chromis, Yellow Dottyback, Scooter Dragonette. 200litres. some inverts. 15% wc weekly, dose with calc and alkalinity. Sump underneath with refug for copepods.
ALK 120, CALC 400, AMM 0, NITRITE 0, NITRATE 0, PH 8.2, DO 9.5. The tank is a year old.
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