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Brightwell Aquatics SpongExcel Supplement for Sponges & Gastropods 125ml / 4.2oz

Brightwell Aquatics SpongExcel Supplement for Sponges & Gastropods 125ml / 4.2oz


Item #: BW01444

In Stock

Supplement for Increasing Growth Rates of Sponges & Gastropods Overview

Ionic silica solution for enhancing growth rates of sponges and gastropods.

1 drop per gallon of water increases ionic silica concentration by ~0.20 ppm.

May be employed in silica-limited systems stocked with sponges to improve water quality by increasing the rate of natural latent organic material uptake by these organisms.

May be used to increase the rate of sponge growth in marine systems housing spongivorous fishes such as marine angelfishes, butterflyfishes, and their allies, providing them with greater access to their natural foods.

Formulated by a marine scientist.


Manufacturer information

Brightwell Aquatics Aquarium Supplies
The goal of Brightwell Aquatics is to provide the absolute highest quality, scientifically-sound products and customer service of any aquarium water care manufacturer, and to do it all in a straight-forward and honorable fashion. All Brightwell products are formulated by marine scientists with a passion for the aquarium hobby. They utilize the highest purity ingredients in concentrations that provide the most use to hobbyists. Nearly all Brightwell Aquatics products are over 99.9% pure. The usage guidelines of Brightwell Aquatics products are written in plain language but the company is always available to answer consumer questions. All products are lot numbered for quality control and customer service.

5 Stars


Reviewed on
March 26, 2019

Yes, I would recommend this.

Great way to add silicates

Pros: Works great

Cons: None

Used this to dose silicates for Dino’s. Works great but I recommend testing with the Hannah silicate checker

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joshua munoz

Reviewed on
October 08, 2014

Yes, I would recommend this.

Silica Supplement

So, I recently purchased a Blue Sponge. I noticed it wasn't doing so well. So, I read that dosing my aquarium with silica could help. It's been about a week and I've noticed that my sponge is doing much better. I've even noticed other sponges in the aquarium slowly growing as well. Just make sure you test your silica before using this product. It's very concentrated and can cause an algae bloom if you add too much.

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