Review: TNC Plugs aquarium substrate fertiliser

6600452a-cc48-42cc-b5c6-371eee889c9f

Editor's Picks
 A perfect place for your Fighter to rest his little fins — the Betta Bed Leaf Hammock.
Gear Post
Review: Betta Bed Leaf Hammock
21 November 2017
 Just look at that little face... No wonder then, that so many fishkeepers find these little puffers so hard to resist.
Features Post
Join the puffer fish fan club!
28 September 2017
 Special care needs to be taken when catching Pictus catfish and other species with spines.
Features Post
Travels with your fish
03 August 2017

For the first time this year a company has produced a product with packaging that doesn't make me cringe, says Nathan Hill.

Absolutely waffle free and with no hyperbolic claims, The Nutrient Company tells me exactly what I need to know without having to dress up labels with fanciful, meaningless words.

Other companies take note — this is exactly what we fishkeepers want.

TNC plugs are a capsule-based substrate fertiliser and come with a complete breakdown of exactly what’s in them. Sodium, potassium and phosphorus rank highest (15%, 4% and 9% respectively) followed by magnesium, Iron and some other trace elements.

Dosage is straightforward. Place two to four capsules per square foot of substrate at a depth of at least 4cm/1.6” and let them do their thing.

Pending planting density, these will sit there providing nutrients for six months or more.

Here they function as a standalone for slower growth or, if combined with a water-based fert, will help offer a complete growth package. After all, what’s really required for good aquatic plant growth is a mixture of both waterborne and root-based feeding.

These are just the ticket for the plant keeper who hasn’t the money to invest in nutrient-rich planting substrates, or for someone already committed to sand or gravel for aesthetic purposes but still wants plants to grow.

Verdict

Excellent. Aquascapers with exhausted planting substrates will want some, community aquarium keepers with a few plants will want some, biotopers wanting to keep clusters of growth alive without weekly or daily dosing will want some — and they’re very cost effective for their anticipated lifespans.

Price: £2.96 for a ten-pack of capsules. Available from The Nutrient Company.

Why not take out a subscription to Practical Fishkeeping magazine? See our latest subscription offer.

Don't forget that PFK is now available to download on the iPad.