NilocG Aquatics Thrive All in One Planted Aquarium Fertilizer, Concentrated Review (2026)

What this fertilizer is for

NilocG Thrive is an all in one liquid fertilizer built for freshwater planted aquariums, combining nitrogen, phosphorus, potassium and a spread of micronutrients into a single concentrated bottle. The idea is to remove the guesswork of dosing separate macro and micro products, which is useful for anyone running a mixed planted tank without a dedicated fertilizing routine. NilocG sells Thrive alongside variants such as Thrive+ for high tech low pH tanks and Thrive S for shrimp tanks, but the base Thrive formula reviewed here targets general community planted setups with light to moderate plant mass. It works with or without pressurized CO2, though growth and nutrient uptake will be faster in a CO2 injected tank. Because it is concentrated, a little goes a long way, which keeps ongoing costs down once you have settled on a dosing routine that matches your plant load and lighting.

Dosing and how far a bottle goes

The manufacturer's standard guidance is to dose 1 mL of Thrive per 5 gallons of water, with three times a week dosing recommended for tanks carrying a heavier plant load or brighter lighting. Thrive ships in a few bottle options, starting with a smaller Easy-Dose pump bottle sized for regular weekly use, plus larger refill jugs for bigger tanks or multiple aquariums, so it is worth checking which size a given listing includes before ordering. Because the site's own note on bottle size is fair, shoppers should read the exact listing carefully, since sellers sometimes offer this fertilizer in more than one size under similar titles. Once you know the bottle size you have, scaling the standard 1 mL per 5 gallon dose up or down for your tank volume is straightforward, and the pump top makes measuring out small doses easy without extra tools.

Where it fits best

This fertilizer is best suited to medium light planted tanks stocked with common easy to moderate plants, such as swords, crypts, anubias, and stem plants that are not pushed under very intense lighting. It is a reasonable starting point for hobbyists moving from no fertilizer routine to a structured one, since a single bottle covers most of what commonly grown aquarium plants need. Tanks with very low light and a light plant load should be cautious, because dosing the full recommended amount into a tank that is not using nutrients quickly can lead to nutrient buildup, which in turn can feed algae rather than plants. In that situation, cutting the dose back, dosing less often, or diluting further gives better control than following the label rate exactly. High tech CO2 tanks with heavy plant mass may eventually want to add extra macros on top of a base Thrive routine.

Using it well

Because Thrive combines nutrients that plants use at different rates, it helps to watch your plants over the first few weeks and adjust dosing rather than sticking rigidly to the label from day one. Signs of a good match include steady new growth without an algae bloom, while yellowing older leaves or stalled growth suggest more frequent dosing might help. Conversely, a sudden green water or diatom bloom after starting fertilizer usually means back off the amount or frequency for a week or two. Regular partial water changes remain useful alongside any all in one fertilizer, since they reset nutrient levels and remove any buildup from slightly generous dosing. Pairing this fertilizer with root tabs for heavy root feeders like swords and crypts is common practice, since a liquid all in one covers the water column but does not replace substrate feeding for plants that pull nutrients through their roots.

Bottom line

NilocG has built a solid reputation in the planted tank hobby, and Thrive's all in one approach is a practical way to keep a mixed species tank fed without managing several bottles of dry or liquid ferts. It suits hobbyists running medium light tanks who want simple, predictable dosing, and it scales reasonably well from small nano setups up to larger community tanks once you know your bottle size. The main things to sort out before buying are confirming exactly which bottle size a listing ships and being ready to dial back dosing in lower light tanks so nutrients do not outpace what your plants can use. Used thoughtfully alongside water changes and, where needed, root tabs, it is a dependable base fertilizer for most planted freshwater setups.

Frequently asked questions