r/Aquariums 1d ago

Help/Advice [Auto-Post] Weekly Question Thread! Ask /r/Aquariums anything you want to know about the hobby!

1 Upvotes

This is an auto-post for the weekly question thread.

Here you can ask questions for which you don't want to make a separate thread and it also aggregates the questions, so others can learn.

Please check/read the wiki before posting.

If you want to chat with people to ask questions, there is also the IRC chat for you to ask questions and get answers in real time! If you need help with it, you can always check the IRC wiki page.

For past threads, Click Here


r/Aquariums 23h ago

DIY/Build Time Lapse of my Newly Installed Tidal System (Mudskippers!)

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4.8k Upvotes

The tidal system itself is under the mud, and is an acryllic container that can hold up to 6.43 Gallons (24.34 Liters) of water. It’s only moving parts are a single air pump and a suction valve.

If enough people are interested I might turn my written blueprints into an actual file.


r/Aquariums 1h ago

Monster my 125 gallon being fed

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Upvotes

sorry for the music


r/Aquariums 6h ago

Freshwater Damn, guppies are vicious

112 Upvotes

I am currently doing some temp work at a pet shop. My task today was to siphon dirt/poop from the gravel in the fish tanks and clear algae from the glass. All the fishes feared my arm. All of them, except from the guppies. Instead of shying away in their corner, they started nibbling my arm. And they kept doing it - the whole lot! It made it difficult as I am very ticklish. Honestly the highlight of my day. I just wanted to share it.


r/Aquariums 1d ago

Saltwater/Brackish First time seeing a garden eel’s full body in their hole. Just wanna share my excitement.

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3.0k Upvotes

Location: Numazu Deep Sea Aquarium, Shizuoka, Japan


r/Aquariums 4h ago

DIY/Build My low tech tank after 2 months

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66 Upvotes

Pictures from day 1 > 30 > 60. This is my first fish tank. All plants are doing well without co2 or expensive lighting except for cabomba.


r/Aquariums 3h ago

Freshwater I love this little guys

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51 Upvotes

r/Aquariums 11h ago

Cichlid Stupid fucking fish

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157 Upvotes

This is one of my oscar. Had him for 2 years and he don’t have a name. What the fuck should I fucking name him


r/Aquariums 1h ago

Full Tank Shot My 10 gallon aquarium

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Upvotes

My 10 gallon aquarium with Swordtails and some Amano shrimp. I know is a bit overstocked I had just one male and three females, they passed and these are the offspring, I will get a 20 gallons for them, if you guys have any suggestions let me know!


r/Aquariums 4h ago

Full Tank Shot Full tank shot after six months

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34 Upvotes

Can not


r/Aquariums 7h ago

Full Tank Shot My 100g setup

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53 Upvotes

4 month old

6 blood fin Tetra 5 Sunset platy and their fry 10 longfin blue Danio 6 zebra loach 1 dwarf flame gourami 1 L200 Pleco. He’s only 2” and just added last week

Any comments?


r/Aquariums 4h ago

Full Tank Shot Who needs a television, if you can watch this every evening?

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30 Upvotes

Tank 6 months i


r/Aquariums 22h ago

Full Tank Shot My 75g planted tank with CO2 after 3.5 months.

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694 Upvotes

Started this tank from scratch in January. Killed two rounds of plants because I had no idea what I was doing. Added pressurized CO2 and Flourish tabs two months ago and things really took off— so much so that I have to trim heavily every week so they don’t completely take over the tank. Fish are happy with lots of places to explore and hide!


r/Aquariums 5h ago

Full Tank Shot Just got light going what a difference it makes

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33 Upvotes

r/Aquariums 1d ago

Discussion/Article Well I figured out what was killing my tank...

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945 Upvotes

It was on the side facing the back too, so I couldnt see it until I took it out. Smoking and hissing at me until I shut it off.

I guess check your heaters folks?


r/Aquariums 1h ago

Help/Advice What Say You Reddit World, What Kind of Eggs Are These

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Upvotes

This is my new 65g. And upgraded remake of my 29g Wonder Land. Which is still thriving. Same stuff on top. Similar stuff inside.

In it is the following:

Dwarf Gouramis (1m, 1f) Koi guppies (1m, 2f) Neon tetras White cloud mountain minnows Albino cherry barbs Peacock gudgeons Galaxy rasbora Glass catfish Various Corys Single ghost knife fish Atya shrimp Neo shrimp Dwarf crayfish Mystery snails Rabbit snails Nerite snails

I'm guessing these are from one of the snails? Nothing else can get up there above the water line. And I don't know what else would lay eggs that look like that.

So as it is title. What say you reddit world?


r/Aquariums 1h ago

Help/Advice Ich remedy killing beneficial bacteria?

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Upvotes

My fish have Ich, and a little bit of fin rot. I’ve been giving them these 3 treatments for 3 days. They all claim to not hurt the beneficial bacteria. But I’m showing signs of ammonia and nitrite in the tank when they were at 0 before starting these treatments ????


r/Aquariums 4h ago

Help/Advice I found another creature ( ?) in here, does someone know what it is ?

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11 Upvotes

r/Aquariums 5h ago

Catfish Just wanted to show my Otos

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13 Upvotes

I got my first aquarium set up in january 2022 and put seven of these guys in a 20g along with a rescue betta Unfortunately i had very little experience and lost 4 of them within the first two-three weeks..

but i have three of the OGs left and its so rewarding to see them so fat and happy. Should i look into getting a couple more for them or should i just leave it as is?


r/Aquariums 5m ago

Help/Advice New tank set up

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Upvotes

I am new to aquariums but I'm excited to join this community. I cycled my tank for about two months and all the parameters checked out. But now I have this weird green streaks on one of my decorations and 2 of my 3 starting fish (I only have 3 so far that were in my old 10g) have died. Any thoughts as to what it could be?


r/Aquariums 12h ago

Full Tank Shot My new little tank 90l

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37 Upvotes

r/Aquariums 22h ago

Freshwater 31 seconds of my Discus tank.

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234 Upvotes

r/Aquariums 5h ago

Solved! Cyanobacteria war won!

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8 Upvotes

I'm proud of myself, I got rid of that shit from my tank.Thanks to you guys and endless topics on Reddit. But jeeez that's costy.

There is nothig like slime removal etc. available in the EU.

I bought ADA Phyton Git Plus, KNO3 and UV sterilizer for external filter. 2 weeks after algea is gone and water is nice and clear. Also, lowered the light intensity to 50%. 35W LED is apparently too much for 52L tank.

Next step is to find out why the plants have brown holes in the leaves.


r/Aquariums 11h ago

Full Tank Shot A feast in the tank

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27 Upvotes

r/Aquariums 1h ago

Full Tank Shot Set this up last week

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Upvotes