bicolour blenny looking thin :/

EI Gringo

New member
My bicolour blenny which I've had for months has stopped eating properly all of a sudden. He's getting real thin and paling in colour. He used to have a massive appetite but I just put in a cube of mysis and he wasn't the slightest bit interested. Any suggestions? :/ maybe live food that they like the most?
 
Water parameters have always been fine, 245-25 at 25'c, he's a companion to a peacock mantis and never had anything bullying it including the mantis which isn't at all bothered with the blenny, always been very healthy.
 
I can't think of any reason why it's gone off frozen mysis which is all I've ever fed him, a quarter- a half cube daily
 
You do realize that "fine" isn't a water parameter?

Point is that something is creating this problem especially since it ate well for a long period of time. Without giving complete information, nobody will be able to give you any ideas on what to look for.

Good Luck.
 
Ammonia nill, nitrites nill, nitrates fine, ph always been stable, oxygen in water very good, water changes regular, very small bioload in tank running for a year. It's a mantis specimen only tank, the blenny is a failsafe in that it gets white markings if it becomes stressed due to the parameters but in 5 months or so it's not shown any markings.
I've just put a cube of mysis in its face and it had a few pecks but not much.
What live food do blennies like most of all and I'll try it?
 
How much algae do you have? Aren't bi-color blennies mostly herbivores? Are you giving it any sort of vegetable matter (nori, algae pellets)? My guess is that your herbivorous fish isn't doing well on a carnivorous diet. They'll eat meaty food but I don't think they'll do well long term if that's all they're getting.
 
Ammonia nill, nitrites nill, nitrates fine, ph always been stable, oxygen in water very good, water changes regular, very small bioload in tank running for a year. It's a mantis specimen only tank, the blenny is a failsafe in that it gets white markings if it becomes stressed due to the parameters but in 5 months or so it's not shown any markings.
I've just put a cube of mysis in its face and it had a few pecks but not much.
What live food do blennies like most of all and I'll try it?

Algae or plants, they are herbivores.

From LA
http://www.liveaquaria.com/product/prod_display.cfm?c=15+23+66&pcatid=66

The diet of the Bicolor Blenny should include vegetable matter, including frozen and dried foods containing marine and blue-green algae. It will also feed on (and help control) algae growing in the aquarium. You're slowly killing it!
 
If you get any more fish definitely do some research on its diet. They're all different. :) My starry blenny will eat whatever she can get, but I give her Aegis algae pellets before feeding the rest of the tank (she's the most food-aggressive fish I have so it's easy to throw a couple of pellets in first). And nori, since there's no other algae to eat.
 
For every marine aquarium fish there is a resume of sorts on Live Aquaria. Like Coelli said learn everything about the species of fish you want to keep. The information is there all you have to do is search it. It even tells you the personality of each fish and there is a compatibility chart as well. Take a few minutes and read the link I gave you above.
 
Ah then maybe it's ran out of algae :/ it was eating mysis alone at my LFS, I just assumed that was sufficient. I have some algae tablets, I'll start dropping them for him. I completely over looked it's diet because it had been fine for so long :S
 
I would get some seaweed salad and an algae clip....I had a bicolor in one of my old tanks and it would lay in the clip like a hammock and eat the seaweed salad all day long. he was as fat and healthy as could be
 
Thankyou ^! I'll certainly look into it, he's really tucking into algae tablets and I've pulled some algae out of my window tank which is basically a small mantis tank with a breeding population of copepods
 
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