The Tidepool

PFP and header are both made by Joschua Knüppe

[polychaete-of-the-day]

Today's worm is an adorable little Nereiphylla paretti. They are sooo pretty.

Photos by Frédéric ANDRE

[serpenfishil]

This is my favorite species of polychaete worm btw

[serpenfishil]

Let's be velvety with mama

[1-fish-a-day]

Your daily fish #72

Mandarin dragonet - Synchiropus splendidus

They are covered by a slightly poisonous mucus and they don't have scales!

They can perch on rocks and wait for unsuspecting victims, usually small invertebrates and crustaceans.

They are mostly carnivorous and a somewhat solitary fish!

LOOK AT THE COLORS!! 🔵🟠🟢

A friend of mine brought me to a specialized fish store and I saw this lil' guy hiding among the rocks!

When I first saw it, I thought someone painted a fish!

I had a great time!! ^^

[serpenfishil]

Fun fact: this fish has my favorite color scheme and pattern combo of any animal

[yuunahahtrouxa]

little Laios!!!!

[serpenfishil]

This is very delightful and whimsical

[kakaocho]

LOZ x Dunmeshi crossover

[dragon-in-a-fez]

[1-fish-a-day]

I've got a fish for you! The hairtail blenny! I think they're really cool, cute, and weird at the same time

Your daily fish #66

Hairtail blenny - Xiphasia setifer

Requested by @serpenfishil

(Long fish!! Long weird fish!)

Known for their elongated bodies and burrowing in the sand.

They burrow themselves tail first, they're don't usually go very far from their burrows but sometimes they hang around floating objects in open water.

They can grow up to 53 cm long and are predominantly nocturnal. They prefer soft sand and mud where it's easier to burrow themselves.

I love that they can look live moving rainbows sometimes!

Australia has some really cool fish. I wish I could visit sometime!

[tiggercsstuff]

Ik that to breathe fish have to seperate oxygen from oxygenated water with their gills…. But how EXACTLY does that work?

Can they get out of breath? Can they get the hiccups? And if so, when they hiccup, does it sound adorable or mildly disturbing (I would love it either way)?

These are the important questions of our generation, and we (I) need answers

[serpenfishil]

Hi, fish nerd here. So, the way that gills work is that as water passes over them, the oxygen kinda just diffuses into them, and carbon dioxide is released. For this to work, they need a high surface area. Gills can actually take oxygen from air just as well as water, but only if they remain wet and don't collaspe onto themselves. As for the other two questions, fish can be "out of breath" so to speak, especially if the water they're in has too little dissolved oxygen. This is the reason many unrelated fish have independently evolved air breathing, as they live in waters with low or inconsistent oxygen levels. Some fish are also very active, like tuna for example, and they can get exhausted if they keep up a chase for too long. Fish cannot hiccup, that happens when your diaphragm is upset, and that muscle is exclusive to mammals. But the way some fish breath does resemble a hiccup, as they suck in water to pass it through their gills. Hope this helped!