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discover the best freshwater plants for your aquarium

Posted: Mon May 29, 2023 5:57 am
by abbeytone
I'm looking to add some live plants to my 20 gallon freshwater tank. It's filtered, and I've got a decent mix of fish - 1 Gasteropelecus sternicla, 1 Angelfish, 4 Neon Tetras, and 4 Corydoras aeneus. I'm leaning towards floating plants, but I'm open to suggestions for rooted ones too. As I'm still pretty new to all this, I'd prefer something easy to care for and hardy.

My tank's parameters are:
Ammonia: 0
Nitrate: 0
Nitrite: 0
Total Hardness: 75 (it's soft)
Total Chlorine: 0
Total Alkalinity: 120
pH: 7.8
Just a heads up, my test kits measure in intervals of .5 and 25, and the Nitrate/Nitrite range is 0-4.9, while Ammonia's 0-24.

Re: discover the best freshwater plants for your aquarium

Posted: Mon May 29, 2023 7:55 am
by coltin
To keep your plants thriving, I'd recommend keeping your tank lights on for around 10-12 hours a day. You'll want to monitor the algae growth on your glass and adjust the lighting time accordingly. If you notice a lot of green algae, try reducing the light by an hour and see how it goes over the next couple of weeks. On the other hand, if there's no algae, you can try increasing the lighting period by an hour and keep an eye on it. A small amount of algae is usually a sign that your lighting time is just right.

For your tank, I think Ambulia, Hygrophila polysperma, or H. ruba/rubra would be great options. Elodia is also a good choice, but I'd avoid buying it in the winter since it tends to fall apart. Hydrilla and common Zorchzon sword plant are also worth considering, as well as narrow Vallis. Water Sprite (Ceratopteris thalictroides/cornuta) is another good option, and it can either float on the surface or be planted in the substrate.

When planting, make sure to bury the roots of the plants in the gravel, except for the Water Sprite which can just float. Adding an iron-based aquarium plant fertiliser can really help your plants thrive. I've found that liquid iron-based fertilisers work better than the tablet forms, although you can also push the tablets under the roots of the plants for good results.

I personally use Sera Florena liquid plant fertiliser, but there are other brands out there too. One thing to avoid is adding carbon fertiliser to your tank - it's just not necessary.

Re: discover the best freshwater plants for your aquarium

Posted: Mon May 29, 2023 10:49 am
by abbeytone
coltin wrote: Mon May 29, 2023 7:55 am To keep your plants thriving, I'd recommend keeping your tank lights on for around 10-12 hours a day. You'll want to monitor the algae growth on your glass and adjust the lighting time accordingly. If you notice a lot of green algae, try reducing the light by an hour and see how it goes over the next couple of weeks. On the other hand, if there's no algae, you can try increasing the lighting period by an hour and keep an eye on it. A small amount of algae is usually a sign that your lighting time is just right.

For your tank, I think Ambulia, Hygrophila polysperma, or H. ruba/rubra would be great options. Elodia is also a good choice, but I'd avoid buying it in the winter since it tends to fall apart. Hydrilla and common Zorchzon sword plant are also worth considering, as well as narrow Vallis. Water Sprite (Ceratopteris thalictroides/cornuta) is another good option, and it can either float on the surface or be planted in the substrate.

When planting, make sure to bury the roots of the plants in the gravel, except for the Water Sprite which can just float. Adding an iron-based aquarium plant fertiliser can really help your plants thrive. I've found that liquid iron-based fertilisers work better than the tablet forms, although you can also push the tablets under the roots of the plants for good results.

I personally use Sera Florena liquid plant fertiliser, but there are other brands out there too. One thing to avoid is adding carbon fertiliser to your tank - it's just not necessary.
Do I need to fertilize the entire substrate or can I just add it to a specific area where my plants will be? I'm assuming I'll need to add it more than once for optimal results.

Re: discover the best freshwater plants for your aquarium

Posted: Mon May 29, 2023 11:40 am
by coltin
If you go for a liquid iron-based fertiliser, just add it to the tank a couple of times a week and the filter's current will mix it into the water.

With tablets, you'll need to push one under the roots of a plant. The usual dose is 1 tablet per 20 litres of water, but check the packet for specific instructions. For example, in a 100-litre tank, you'd put 5 tablets under 5 plants.

I personally prefer liquids, they're easier to use and don't cause those annoying foamy bubbles on the surface that some tablet brands can.

Remember, these fertilisers are specifically for aquarium plants and shouldn't be confused with terrestrial plant fertilisers. Don't even think about using garden plant fertilisers in your tank, they'll harm the fish. Always stick to aquarium plant fertilisers from a pet shop.

Re: discover the best freshwater plants for your aquarium

Posted: Mon May 29, 2023 12:15 pm
by abbeytone
coltin wrote: Mon May 29, 2023 7:55 am To keep your plants thriving, I'd recommend keeping your tank lights on for around 10-12 hours a day. You'll want to monitor the algae growth on your glass and adjust the lighting time accordingly. If you notice a lot of green algae, try reducing the light by an hour and see how it goes over the next couple of weeks. On the other hand, if there's no algae, you can try increasing the lighting period by an hour and keep an eye on it. A small amount of algae is usually a sign that your lighting time is just right.

For your tank, I think Ambulia, Hygrophila polysperma, or H. ruba/rubra would be great options. Elodia is also a good choice, but I'd avoid buying it in the winter since it tends to fall apart. Hydrilla and common Zorchzon sword plant are also worth considering, as well as narrow Vallis. Water Sprite (Ceratopteris thalictroides/cornuta) is another good option, and it can either float on the surface or be planted in the substrate.

When planting, make sure to bury the roots of the plants in the gravel, except for the Water Sprite which can just float. Adding an iron-based aquarium plant fertiliser can really help your plants thrive. I've found that liquid iron-based fertilisers work better than the tablet forms, although you can also push the tablets under the roots of the plants for good results.

I personally use Sera Florena liquid plant fertiliser, but there are other brands out there too. One thing to avoid is adding carbon fertiliser to your tank - it's just not necessary.
Yeah, that's what I'm thinking, just add the plant to the tank, either floating or planted in the gravel, and then add the liquid fertilizer a few times a week.

Re: discover the best freshwater plants for your aquarium

Posted: Mon May 29, 2023 12:15 pm
by coltin
yep

Re: discover the best freshwater plants for your aquarium

Posted: Mon May 29, 2023 12:21 pm
by abbeytone
coltin wrote: Mon May 29, 2023 7:55 am To keep your plants thriving, I'd recommend keeping your tank lights on for around 10-12 hours a day. You'll want to monitor the algae growth on your glass and adjust the lighting time accordingly. If you notice a lot of green algae, try reducing the light by an hour and see how it goes over the next couple of weeks. On the other hand, if there's no algae, you can try increasing the lighting period by an hour and keep an eye on it. A small amount of algae is usually a sign that your lighting time is just right.

For your tank, I think Ambulia, Hygrophila polysperma, or H. ruba/rubra would be great options. Elodia is also a good choice, but I'd avoid buying it in the winter since it tends to fall apart. Hydrilla and common Zorchzon sword plant are also worth considering, as well as narrow Vallis. Water Sprite (Ceratopteris thalictroides/cornuta) is another good option, and it can either float on the surface or be planted in the substrate.

When planting, make sure to bury the roots of the plants in the gravel, except for the Water Sprite which can just float. Adding an iron-based aquarium plant fertiliser can really help your plants thrive. I've found that liquid iron-based fertilisers work better than the tablet forms, although you can also push the tablets under the roots of the plants for good results.

I personally use Sera Florena liquid plant fertiliser, but there are other brands out there too. One thing to avoid is adding carbon fertiliser to your tank - it's just not necessary.
Thanks for the info, I really appreciate it. If the plants grow too fast, will I need to trim them with scissors to keep them under control?