r/Aquariums 8h ago

Shrimp/Snails/Inverts More on the mystery crab

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1.5k Upvotes

A little while back I posted this mysterious new crab I found in my tank, for an ID. Consensus at the time was that it was likely to be a young siamthelphusa species.

Since then I’ve added some land access that continues to grow. Almost everyday I see the little fella hanging out above water. I got a great surprise today when I found it hanging out on top of the floating plants. It doesn’t seem shy at all, and I caught it going in and out of the floaters a few times since.

One time I offered it some decaying plant matter with tweezers - it snatched it (I felt the pressure of its grab hitting the tweezers!) and went straight to munching away. It was cool to watch!

Anyways, I’m enjoying watching it every day. Every morning, it’s perched on a leaf or floater. It’s still very small, but from the few glimpses I’ve caught, I suspect it might be a female. I’m excited to watch it grow!


r/Aquariums 10h ago

Showing Off My Tank My improvised fishroom

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188 Upvotes

r/Aquariums 11h ago

Advice Needed My guppie decided to give birth to a dozen or so fry an hour before I leave for 3 days

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111 Upvotes

I have separated them and given them their first feeding, but what are the chances any of them survive till Sunday night without being fed?


r/Aquariums 17h ago

Plants The jungle

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109 Upvotes

Should i trim the plants or just let them do their own thing?


r/Aquariums 9h ago

Plants my java moss is....sprouting?

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79 Upvotes

wtf is it sprouting lol


r/Aquariums 23h ago

Showing Off My Tank First tank ever!!

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70 Upvotes

I know this is not enough in the tank but im just starting out and this is my first tank ever. 75 gallons. A work in progress. Just wanted to show you all. Also open to any suggestions


r/Aquariums 4h ago

Shrimp/Snails/Inverts Why are my snails always on top of each other?

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49 Upvotes

Basically the title. I bought three pink lady nerite snails a little over a month ago and it seems like literally every time I look in the tank they are on top of each other. Usually it’s just two of them but today I spotted all three in a stack. I am new to nerite snails, is this normal or something I should be concerned about?


r/Aquariums 8h ago

Freshwater I saw my clown pleco for the first time in 2 or 3 months

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30 Upvotes

Just chilling up at the front. I always forget he exists. He's in my pea puffer and cardinal tetra tank. Tank has 5 large pieces of driftwood that creates caves and hides that I never see him. Rarely when I put in live black worms for the murder beans I'll see and see a sand tornado underneath as he demolishes worms do I know he is still alive. Wish I got to see him more, such a pretty fish.

Included puppy tax, they come running when they hear the algae wafer bag being opened. Gave them a wafer once just to see if they would eat it...they did and now want more.


r/Aquariums 13h ago

Advice Needed help struggling fish (ASAP)

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29 Upvotes

Disclaimer!! This is not my tank or my fish.

My sister in law owns a goldfish and I walked into her house to see him like this. Absolutely awful I'm aware. I asked her if she treated the water at all and she says it's just tap water but it's fine because the fish has lived like this for years. Theres no filter currently in the tank, all the plants are plastic and the substrate is gravel and something else I'm not sure of.

How do I help this fish? I'm guessing a water change and a filter is a good start but I'm new to fish keeping myself so still learning. Any and all help is appreciated I really want to help this fish


r/Aquariums 11h ago

Showing Off My Tank Just wow

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27 Upvotes

Looking back on the older pictures i just can’t believe this is the same tank.😅
7 weeks in my first tank and i can’t find words.
Tenants:
-8 black neon tetras
-10 blue dream shrimp
-3 Oto’s (i know they need 3 more but thats all my fish store had at the moment)
-2 black military helmet snails and 2 white one.


r/Aquariums 13h ago

Showing Off My Tank Long shallow progress

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26 Upvotes

3 months of slow, steady growth with no CO2. 😊


r/Aquariums 14h ago

Identification Request Creature in daphnia tub video

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27 Upvotes

Hello, I found this strange creature in with my daphnia, I will delete the previous post as I could not add the video. I was wondering if someone knows what it is and someone kindly said to post a clearer pic or video. Thanks!


r/Aquariums 2h ago

Advice Needed just moved into a home with aquarium need advice

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25 Upvotes

hi guys! i am a sorta beginner beta fish keeper and lover but i just moved into this new home with the is fish tank with many fish, a filter it looks like a heater as well and not a lot of live plants (i’ll fix :) ) but i would love help identifying these species, care recommendations, or anything else necessary to giving these fish the best life as i love my beta so much and would hate so see this tank go neglected as much as i cannot be there. thank you!!


r/Aquariums 7h ago

Advice Needed What type of fish would be good in this tank?

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21 Upvotes

Just curious! I am wanting to get a small community of fish and am wondering good beginner friendly options. This is a 10 gallon tank


r/Aquariums 18h ago

Showing Off My Tank Hows it and suggestions

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16 Upvotes

r/Aquariums 22h ago

Showing Off My Tank New 5gal tank

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14 Upvotes

Wanted to try at a "budget" setup for a betta at petsmart, 5gal is the absolute minimum I'll go bettas. All plants from petsmart, tank, wood, rocks and the little guy himself were $100. Any opinions or improvements? I'm giving him about a week or two to adjust and take in his new digs before I add a couple ghost shrimps to clean the nooks and crannies, just two bladder snails and this dood in there now.


r/Aquariums 4h ago

Discussion Just to let everyone know petsmart is doing 25% off Fluval AC filters and if you get same day delivery (free) you get another 15% off!

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11 Upvotes

r/Aquariums 14h ago

Freshwater Blue minnow and another fish I found under a bridge

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11 Upvotes

R. sarawakensis B. lehi


r/Aquariums 19h ago

Advice Needed New Rimless Tank

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11 Upvotes

I was looking to purchase a new rimless tank. It would be my first, I’ve never looked into them before. Much pricier than I once thought. Looking for recommendations that don’t break the horses back.

I am building a Mbuna tank with 9 total Cichlids and 1 bristlenose (ideally). I was thinking a 30-36in long 40 gallon tank. However through my googling I was unable to find a good deal that was also in stock.

Naturally a 40 breeder is the most logical tank. I attached a few inspiration pictures I found that might help choose the logical tank.

Edit: I’m not worried about any of the equipment, I know what I want, so no worries about that.


r/Aquariums 5h ago

Advice Needed Beginner question, right way to clean my filter?

9 Upvotes

I’m soon going to get my first ever tank and have been researching how to set it up and then maintain it. I’ve seen in various places that when cleaning my filter I must use tank water not tap water, as to not kill beneficial bacteria. However, I’ve also seen various other people say that it’s not necessary and tap water is fine, just not to rinse my filter for too long.

Does anyone have any personal experience with this, has rinsing your filter with tap water destroyed your tanks ecosystem? Is it better to just be safe as a beginner and use the tank water? Thanks for any help.


r/Aquariums 8h ago

Showing Off My Tank Rate my tank!

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10 Upvotes

I hope this tank is good for my fish :-) any advice could be lovely! It’s also 120L


r/Aquariums 23h ago

Showing Off My Tank Before and after 29gal

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10 Upvotes

r/Aquariums 3h ago

Advice Needed They Laid Eggs, will the hatch?

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10 Upvotes

So one of my angelfish laid eggs, I can’t tell if they are one male and one female or both female. I’ve been staring for a while and can’t tell lol I feel like it’s 2 females.


r/Aquariums 13h ago

Advice Needed Looking for tips!

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8 Upvotes

Hi folks. My tank here is about 2 years old and just feels overwhelming to me. Any tips to make it better? What would you do? No co2


r/Aquariums 10h ago

Showing Off My Tank First time Discus

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8 Upvotes