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Wonder Shell

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Best Seller

$ 49.00 until FREE shipping


These shells are great for adding hardness into your water and work as dechlorinator as well! Often times we need more minerals for our snails, shrimp, plants, goldfish and african cichlids tanks. What size you need depends on your aquarium. We recommend testing your water and adjusting based on water change schedule. 

Here are some very loose guidelines:
3 Pak - 1 shell per month for 5 to 10 gallon aquariums.

2/5 Ounce - 1 shell per month for 20-30 gallon aquariums.

1 1/3 Ounce - 1 shell per month for 40 to 55 gallon aquariums.

2 1/4 Ounce - 1 shell per month for 75 and larger aquariums.

Customer Reviews

Based on 45 reviews
89%
(40)
9%
(4)
2%
(1)
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P
P.M.
Works Great Easy to use

Just drop it in the tank and forget about it. Works great.

E
E.H.
Wondershells Not For Me

I was disappointed when I realized just how many Wondershells it would take to increase the calcium in my 65 gallon tank. Might be good for small tanks but is not the solution for me.

d
d.r.l.j.
good

works great in my 5 tanks

S
S.H.
Wonder shell

Works great in my 3 tanks

L
L.K.
Excellent product

second purchase of this item...it came so fast...very happy with service