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"Burns" on dwarf gourami's "cheek"...?


Funkytown

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Hello.

So my tank should be fully cycled now. Nitrites have dropped right back, and I've notice my fish behaving differently. They seem more "relaxed", or maybe it's just that I'm more relaxed knowing my tank is cycled... ;)

I recently noticed some discolouration on my cobalt blue dwarf gourami's "cheek" the other day. I don't think it was there before. The fish seems fine otherwise, so I'm not stressing, but I thought I'd pose it to you guys.

There are two patches, both a sort of darker silvery grey colour than the rest of the fish (bright cobalt blue). It looks to my eye like a bruise or a "burn" of some kind, as it seems to be on the raised area of the cheek and behind the eye (ie the parts that would touch the glass first). It's only on one side. I hope that makes sense... :roll:

I've noticed my pH drops slightly over the course of the week, probably due to the wood in the tank, but my small weekly water changes keep it around 7. As I say, nitrites have only recently dropped back after cycling, but this discolouration seems to have occured AFTER the nitrite peak started subsiding. My hunch is that it is related to the stress of the nitrite spike, and just manifested itself a little later.

Tankmates include; 3 peppered corys and a fast spiraling population of snails... :-?

Thoughts?

Ta,

Brian ;)

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