Neutro Combo - Low Tech (Small)

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Neutro Combo - Low Tech is an ALL IN ONE kit for the Low Tech (non CO2) aquarium. You make a little saving too!!

Neutro T is a liquid aquarium plant fertiliser which provides all the necessary trace elements including iron for your low tech planted aquarium. Low tech means aquariums which are not using pressurised CO2.  The ingredients in Neutro T are special. They work quickly and effectively when dosed as recommended. Your plants will show the benefits of this product and reward you in no time.

Dosage: This product needs to be dosed daily so that your plants have a steady stream of nutrients. There's little point in dumping a weeks worth of fertilisers in one go. Simply add 5ml per 100L every day. It doesn't matter what time of the day you dose, as long as it's every 24 hours.

If you are using CO2, then you need to dose Neutro+ which contains trace elements and macro nutrients (it's an all in one solution). So Neutro T for low tech planted aquariums and Neutro+ for high tech planted aquariums.

However regardless of what type of planted aquarium you have, we recommend using Neutro CO2 which is a liquid carbon supplement (see related products for more information).

Bottle sizes: Small = 500ml

Neutro CO2 is a liquid source of carbon for the planted aquarium.

For those of you not familiar with it, carbon is essential for all healthy plant growth and can be provided via gas, or liquid. The liquid form is not as potent as the gas but is still very effective. It won't make your plants pearl (this is when you see O2 bubbles coming from the plant) but it will help them grow. Plants that have access to liquid carbon will do far better than those without.

In addition to this, if you over dose Neutro CO2, it can have a negative effect on algae (helps reduce it). However you need to take care when overdosing, and increase it slowly. Perhaps 25% extra, then monitor the results. We do not recommend more than double dose.

It is also possible to spot treat plants or wood that have algae growing on them. Simply by using a pipette and extracting some Neutro CO2, squirt the carbon onto the plant or wood when it is outside of the water. Wait for 10 seconds then put it back into the water. You can also do this when performing a water change (it's easiest that way). But if you leave liquid carbon on for too long you will kill the plant.

DIRECTIONS: Add 5ml per 250L every day. It doesn't matter what time of day you dose this product, but it does need to be added every 24 hours.

Bottle sizes: Small = 500ml

by Gillian S. on 13/4/2021

Can't believe I never thought of looking after the aquarium plants as well as the fishes! The plants do seem to be perking up now, but I think it's still too soon to say. I may have been using plants before that were sensitive to the aquaria temperature (22 deg), so they didn't last long. Hopefully this new 'gardening' and the right plants may prove the answer! So glad I got this double pack!

by Petch S. on 7/4/2021

Ordered a small quantity to see what a difference it could make to my planted really does make a difference in a short time,I'm already thinking of needing to trim some vigorous plants!

by theresa b. on 18/3/2021

I like this,I set up my tank last year and still have a lot of the plants I bought then from Aqua growing in my tank and I think it's down to using these

by George F. on 25/2/2021

Had problems with my plants caused by my previous "complete fertilizer",Richard suggested this when i asked his advice and i'm happy to say it works. Thank you Richard :)

by theresa b. on 19/12/2020

this keeps my plants looking good

by Jan T. on 16/12/2020

Ive been using these products for a year or so and they do the job. Plants are growing so well that I'm cutting them back and pulling bits out almost every week. The whole tank looks vibrant and healthy

Ask a question about this product
Neutro Combo - Low Tech Small not doing as well as I thought it would I have used Neutro Combo - Low Tech Small (which has now run out ) also before I used it I was doin water changes and still doing water changes. The plants are not doing as well as I thought they would. but since using Neutro Combo all algae on my gravel and glass is gone. algae is growing on the plants as strong as ever even though my water now stands at no2=0 no3=0 ph=6.5 to 7 kh=180 gh= 120 last thing to go down was the ammonia which now stands between 0 and 0.5 and has been this low for some weeks. I have stopped liquid plant food and using plant pellets at the roots to try and keep feeding down in the water column.


You still have to do water changes regardless if you use this product or not!

If algae is growing on your plants, it's for many reasons, none of which are as a result of fertilisers as they DO NOT cause algae.

What does cause algae is:

1) poor water circulation

2) excessive lighting (too bright and too long)

3) insufficient water changes

4) not enough plants

5) insufficient numbers of algae eating shrimp

6) not enough or no fertilisers

By stopping using plant feed you will make the situation worse.

Can you tell me if this is fish and snail safe please.



is this safe for clown and yo yo loaches?



Silly question coming up. Just started feeding with the Neutro combo. The dosage given is per 100 litres. I have a 64 litre tank so with a bit of calculation I am doing the fertiliser at 3ml per dose and the CO2 at 1.5ml. Is that about right?


About right. I'd do 4ml Neutro T daily but stick to 1.5ml carbon

I have been using this product for 2 weeks and I am seeing signs of improvement in my plants. However my filter medium is getting heavily stained brown. Is this normal? And does it mean my filter is taking the fertiliser out of the water?


Don't worry - quite normal.

As long as you are not using carbon media then the fertilisers will stay in your aquarium

Good morning All Please could I ask if these products would increase the pH of the water? Thanks


No impact on pH 

Hi, I have been using this now for three weeks. and my plants are improving. However I have found my ammonia levels have gone from 0 to .25 and all my plants have brown furry algae growing on them and it is on an the filter and heater. I have a 64L tank, at 80 degrees lights on for 7 hours and a 30% weekly water change. I run a fluval 3 filter with polymax media instead of the polycarb media. Any ideas whats happening? Thanks


The ammonia is unrelated to the fertilisers so you need to investigate that more. Ammonia is also the number 1 food source for algae...

After working out why you have ammonia, you need to change more water (30% twice or three times a week) and reduce your lighting duration to 6 hours per day. You also need lots of plants as they use ammonia as a food source.

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