8 - 6 = ?  
Input the result from the expression
Maximum attempts you can try: 10

Re: Compatability of this!

Subject: Re: Compatability of this!
by fcmf on 2019/1/6 17:26:00

It could be a Chinese algae eater [ https://www.fishkeeping.co.uk/modules/ ... sheet.php?caresheetID=126 or https://www.seriouslyfish.com/species/crossocheilus-atrilimes/ or https://www.seriouslyfish.com/species/crossocheilus-langei/ ] or an otocinclus [ https://www.seriouslyfish.com/species/otocinclus-cocama/ ] but NB it would be important to determine which as they have very different requirements for care, most importantly tank size requirements.

If it is harassing the goldfish, and particularly to the extent you describe and which could result in stressing the goldfish to the brink of injury, illness or death, then it needs to be separated from them. Your priority will be to establish which of the above it is, and, if a Chinese/Siamese algae eater or similar species which requires a much larger tank, then either upgrade its tank ASAP or else re-home it via www.aquarist-classifieds.co.uk

As it's difficult to tell from the information you've provided, and without the water quality and water parameter information, my inclination is that the fish is more likely to be a Chinese/Siamese algae eater than an otocinclus as the behaviour seems very different from the timid/gentle behaviour of an otocinclus and which would likely be intimidated by the presumably larger goldfish.

The goldfish also require a very different and much larger environment to a 57-litre tank. The reasons behind this can be read in https://www.fishkeeping.co.uk/articles ... -size-life-expectancy.htm and http://injaf.org/aquarium-fish/the-goldfish-section/ . If you can't provide them with the size of tank and other aspects of care they require - https://www.fishkeeping.co.uk/articles_12/keeping-goldfish.htm and https://www.fishkeeping.co.uk/modules/ ... esheets.php?cat=Coldwater for the appropriate Caresheet for the species you have - then, again, I'd advise re-homing via www.aquarist-classifieds.co.uk If they are single-tailed / common or comet goldfish, then you could temporarily home them in a 145-litre Really Useful Box http://www.reallyusefulproducts.co.uk ... eshop/rub/b145_0litre.php until the spring when a nearby pond owner could hopefully take them on - Aquarist Classifieds might advertise such locally.

Hope that's useful.