r/freshwateraquarium

Image 1 — Filter help
Image 2 — Filter help

Filter help

So I want to start a new tank with a canister filter, but I want to speed up the cycle by putting some of the pervious filter media in it. But I don’t know where?

Here’s some photos (sorry if I’m bad at explaining it)

u/Accomplished-Pop6582 — 1 hour ago
▲ 17 r/Aquariums+1 crossposts

Thoughts on my tank? Tips welcome:)

First time setting up a betta tank, used to MUCH larger community tanks. This is a 40L cube. Just not sure what else I can do to it to make my betta happier!

I know I need some sort of a perch closer to the surface, and I’m thinking about getting a plant corral to prevent the floaters blocking the light getting to my pink plant. Also need to even out the substrate after my partner helped with a water change last night… lol

Any tips greatly appreciated!

u/thornbackcowfish — 18 hours ago

First time cycling - help 😟

Set up my tank Thursday, 4/2 and it’s currently Monday, 4/6. I added fish food, but the ammonia hasn’t gone past .25 ppm and today the nitrites and nitrates rose. Is this ok? It’s my first time doing this, just need some pointers. Thanks!

Also waiting on driftwood and more plants so don’t flame me pls 😭

u/Fit-Flamingo6602 — 14 hours ago

Seachem MetroPlex alternative?

I’ve been recommended to try MetroPlex to check if my betta has internal parasites or something going on. But I can’t find it at local fish stores or Canadian Amazon. Is there an alternative? Or does anyone know where I can purchase it online in Canada?

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u/ensorcellzed — 3 hours ago
▲ 7 r/Aquariums+1 crossposts

Stiphodon gobies?

Does anyone have experience keeping singles of multiple species of stiphodon gobies together? I know that they often do well in groups of their own species, but for example if I were to have a birdsong, rainbow and a blue neon all in the same tank, would they benefit the same as if they were in a group of their own species? Just curious to know if that’s an option.

I currently have one stiphodon goby, whose exact species is unknown. The store had him labeled as “stiphodon carisa?” so it seems that even they were unsure. I’d like to give him some friends so he can feel safe in a group, but I would also like a bit of diversity + I don’t know for sure what he is so it may be a tall task to find the same species.

I will go ahead and attach a photo of Frederick, if anyone can identify him that would be great as well.

u/InfiniteDiscipline55 — 15 hours ago

Help! Aquarium changed, fish died

Looking for some advice because I thought I did it right, went from a 10 gallon to 29 gallon tank, three types of tetra groups with 3 fish in each, and two Otto’s. I filled new tank with tap water (I’m on well) as well as about two gallons from my 10 gallon tank, the same temp as other tank, 78 degrees, added 15ml water conditioner, swapped plants over, along with other random caves/ artificial log. Switched old filter from tank hung sump into the new sump. I then let it run for an hour, placed fish in a bucket of old tank water and slow added a cup of new water three times over 20 minutes, then netted them into new tank. This was 5pm yesterday, this morning I have lost 7 of the 11 fish, and water testing isn’t showing ammonia or nitrites. I did have a ton of bubbles everywhere after filling the tank, could it have off gassed into water or something hurting them?

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u/Large_Succotash_8380 — 21 hours ago

Need help for set up

Just aquired a 55 gallon tank (largest one i own now). Currently have a 20 gallon tall but need some help. For this 55 should i have two HOB filters with a 307 fluval canister and a sponge filter, just the 307 cannister, or just two HOB filters? Or some kind mixture i have not listed. What wattage of heater or heaters should i include aswell. And a certain bubbler if neccessary. If you have any other advice or tips please let me know. I want the best settup possible. Not sure yet about what kind of fish i want to put in yet but a setup that would be compatable for either larger or smaller. Thank you any advice helps.

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u/Skil_Ghost — 6 hours ago

What is the white stuff?

Came back after a week away, parents were taking care of the shrimp I keep in here, and just noticed the white stuff, pretty sure it’s shrimp crap but just want to double check as this is my first time having shrimp

u/Ok-Technology-5878 — 19 hours ago

Red Sea 625XL - Fish Stocking Suggestions

Hey, I'm new to the fish keeping hobby, and so far been relying on Gemini and other reddit posts to help me get to where I am. I've fitted out all the equipment needed and cycled the tank (5 weeks, using Dr Tims Ammonia), but just a bit confused on how best to fill the tank now. I was hoping to get some advice/ suggestions on what I should get, or at least get some directions on where to take it.

The equipment I have is:
- Red Sea 625XL, with full sump where all equipment is housed
- Jecod DCP-6500 return pump
- Reefmat 1200 filter
- Eheim UV800 filter (with separate Jecod pump)
- Eheim air pump 400
- Inkbird wifi thermostat controller with DD titanium heaters (950w in total)
- Chihiros WRGB II Pro light
- also planning on buying a lid

Landscaping wise, I'm still figuring this out too, but i currently have:
- the substrate is JBL Sansibar white sand
- planting wise, it's currently tropica plant pots of Littorella uniflora and Eleocharis pusilla, and already added Seachem flourish root tabs under it
- lava rock in the centre
- still need to add more plants and hardscape but currently TBC

I can list out all the general media and supplies I have but not sure how relevant that is, but I do have everything that I need in terms of medicine, plant fertiliser, seachem matrix, water conditioning, API test kits, etc. And also a separate quarantine tank ready to go.

I'm also based in Central London, so have hard water naturally and not intending to use anything else like osmosis water, just treating the tap water with Seachem Prime and Stability. pH is generally around 7.4 on average.

In terms of personal preferences on what to keep -
- i'm only intending to keep freshwater/ tropical fish, no saltwater types
- i mostly would like the fish to have vibrant colours generally, but also want some darker colours to add some contrast
- i'm leaning more towards keeping a community tank with lots of fish

I've used Gemini to generate a list based on dozens of fish I found online, and it's suggested a list of fish that are peaceful, avoiding clashes in the water columns/ swimming areas, and that are generally easy to maintain, which is all great - but the only negative I've found is that the majority of the suggestions are all quite small fish, like cherry barbs and tetras.

Just wondered if anyone had any fish stocking suggestions that i could follow up on please, as I'm pretty open to suggestions (either individual fish to check out, or your own dream list)?

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u/chewie- — 10 hours ago

First time cycling - help 😟

Set up my tank Thursday, 4/2 and it’s currently Monday, 4/6. I added fish food, but the ammonia hasn’t gone past .25 ppm and today the nitrites and nitrates rose. Is this ok? It’s my first time doing this, just need some pointers. Thanks!

Also waiting on driftwood and more plants so don’t flame me pls 😭

u/Fit-Flamingo6602 — 14 hours ago
Week