ThriveCaps | Aquarium Root Fertilizer Tabs Caps 60 Count

I love these capsules. They don't dissolve like the API ones while you're trying to get them in the substrate. If you pinch them and let the air out, they do not float. I've been using these about 3 months now, and have not had any come back up. My plants are all looking very healthy and green, and are growing much faster now. Also super cost effective!

Works well to keep certain plants to thrive in a gravel tank. They do float so you have to be careful when inserting them. I use a long, bent arm tweezer to push into the gravel.

These fertilizer tabs do the job, but there’s nothing particularly great or bad about them. They work as expected, but they don’t stand out in any way. Just average, nothing to really love or dislike.

First thing I noticed when I received my new order of root tabs was that the bottle was different and smaller. Suspicious and a little stressed, I opened it to see it packed with the familiar root tabs I've come to love and trust. I didn't count them, but I can definitely estimate that they put 60 in there. My swords love these and I've never seen them grow bigger and greener on anything else. Awesome price for a reliable product.

This product is very safe for my fish! I found out through an error I made while trying to insert a floating moss ring into my substrate and I punctured one of the capsules I had inserted 10 minutes before the package of moss arrived and I was horrified that I would lose my fish! Everything was fine I noticed as my Cory's continued their play and all the other fish staring at me like What's wrong with you? Then it hit me that they thought of novices like myself when they made Thrive! My fish are still very healthy and my plants are better for it.

Does the trick. Plants are happy. Just poke a hole in the capsule and squeeze air out before putting in take to prevent it from floating.

UPDATE 6/25/24. Today I decided to finally get some new plants to replace all of the other ones that died after using this product. The oily bubbles that I mentioned in my previous review took months to dissipate even with water changes and me cleaning out the canister and sponge filters. Today, I emptied about 30% of the water to make placing the new plants a tad bit easier. I'd like to mention that normally when I clean the tank, I just lightly run my fingers across the sand and poke holes with my finger deeper in the sand throughout. The tank was already clean so all I needed to do was plant today. As I inserted the plants which must have been in a lot of the same spots where I had plants before, I unearthed lots of residual fertilizer that was placed 8 months ago. I thought I had gotten rid of it but deep in the sand, there was more. I sucked out all I came across and continued to plant. 2hrs later, I went to look at my oasis and something was off. The plants were all still planted, the fish looked happy but something was off. Then it hit me. There wasn't a Panda Corey in sight and they're usually moving about on the bottom. After closer inspection, I see that one was eaten with a few remnants scattered about and 3 were dead under a piece of wood. All was well until I disturbed the old fertilizer that was buried deep in the sand. The water parameters are still good so no spike there and the larger fish appear to be fine. Also no oily bubbles so I assume that comes from the capsule and not the contents. Whatever the case, save yourself the headache and buy something else. ORIGINAL POST- I've purchased these 3 times and this last bottle was definitely different from the others. Normally you have a hard time getting them to stay down but this time they actually sank. You would think that's a good thing but no! When you push it in the sand it disintegrates on contact and you have fertilizer going everywhere. A day after using, I noticed that 4 of my plants were not looking too good. A day after that, they were almost transparent and a day after that, what was left of them was mush. When I went to remove them, they were so soft that they just fell apart and I had to catch the debris with a net. In my other tank, I only have 1 plant. I see that this ones bulb is starting to look rather mushy towards the top. I've also lost 4 fish over the last week. Seeing that the only change to the tank is the use of this fertilizer, I can only assume that it is whats killing them. I've had them for almost 2 years so these sudden deaths are quite alarming. There's also oily, thick bubbles on the surface of the water. I have been using the all-in-one liquid fert for years with no problem but I'm done with the capsules.

These look like medicine capsules, so they float. Not sure how long before they dissolve. Keep out of reach of.... and out of the medicine cabinet.

Tres bon produit pour les racines des plantes et pour la santé des plantes.

Pour mes plantes bon pruduits

My plants seem happy. People who complain about these floating either don't have enough substrate or aren't following the directions and shoving them in deep enough.

Great product. My plants have doubled in size in a month

Bon produit