Great photos and thanks for the information.No problem, most likely female. Some thorichthys species in the helleri group can be sexed that way. This mixteco blue (or whatever it’s classified as now) female is an example. You won’t see it in meeki or pasionis.
I agree about the nitrates. That stock shouldn’t produce a huge bio load at their size in that size tank. If I were you I’d get that down. The thorichthys won’t do well w/ nitrates that high. IMO meeki is the only thorichthys that can tolerate nitrates that high.
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Thanks for the advice C.Breeze that’s definitely more thorough maintenance regime then I have dared previously On the basis I was concerned I was going to destroy the biological bacteria in the filters. I will clean one of the canisters (last cleaned in February) and hope that brings the nitrate down.
thanks all for the advice, I’ll keep you updated on how it is going.
Cheers